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67331969484 = 223138319312693
BaseRepresentation
bin111110101101010011…
…000101000111001100
320102210110222110001120
4332231103011013030
52100343441010414
650533141440540
74602356204013
oct765523050714
9212713873046
1067331969484
112661216127a
1211071410150
136470775480
14338a545a7a
151b412932a9
hexfad4c51cc

67331969484 has 96 divisors (see below), whose sum is σ = 171383917824. Its totient is φ = 20449724160.

The previous prime is 67331969449. The next prime is 67331969489. The reversal of 67331969484 is 48496913376.

It is a super-2 number, since 2×673319694842 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67331969489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25001242 + ... + 25003934.

It is an arithmetic number, because the mean of its divisors is an integer number (1785249144).

Almost surely, 267331969484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67331969484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85691958912).

67331969484 is an abundant number, since it is smaller than the sum of its proper divisors (104051948340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67331969484 is a wasteful number, since it uses less digits than its factorization.

67331969484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727 (or 4725 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 60.

The spelling of 67331969484 in words is "sixty-seven billion, three hundred thirty-one million, nine hundred sixty-nine thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 83 156 166 249 332 498 996 1079 1931 2158 2693 3237 3862 4316 5386 5793 6474 7724 8079 10772 11586 12948 16158 23172 25103 32316 35009 50206 70018 75309 100412 105027 140036 150618 160273 210054 223519 301236 320546 420108 447038 480819 641092 670557 894076 961638 1341114 1923276 2083549 2682228 2905747 4167098 5200183 5811494 6250647 8334196 8717241 10400366 11622988 12501294 15600549 17434482 20800732 25002588 31201098 34868964 62402196 67602379 135204758 202807137 270409516 405614274 431615189 811228548 863230378 1294845567 1726460756 2589691134 5179382268 5610997457 11221994914 16832992371 22443989828 33665984742 67331969484