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67457462668 = 22197199712539
BaseRepresentation
bin111110110100110001…
…110011000110001100
320110010020010011100021
4332310301303012030
52101123102301133
650553423311524
74605441654241
oct766461630614
9213106104307
1067457462668
1126676a85152
12110a744b5a4
1364907737ab
14339d0915c8
151b4c2d152d
hexfb4c7318c

67457462668 has 48 divisors (see below), whose sum is σ = 126150393600. Its totient is φ = 31469376960.

The previous prime is 67457462659. The next prime is 67457462671. The reversal of 67457462668 is 86626475476.

It is a happy number.

It is a super-2 number, since 2×674574626682 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5373543 + ... + 5386081.

It is an arithmetic number, because the mean of its divisors is an integer number (2628133200).

Almost surely, 267457462668 is an apocalyptic number.

It is an amenable number.

67457462668 is a deficient number, since it is larger than the sum of its proper divisors (58692930932).

67457462668 is a wasteful number, since it uses less digits than its factorization.

67457462668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13630 (or 13628 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 61.

The spelling of 67457462668 in words is "sixty-seven billion, four hundred fifty-seven million, four hundred sixty-two thousand, six hundred sixty-eight".

Divisors: 1 2 4 19 38 71 76 142 284 997 1349 1994 2698 3988 5396 12539 18943 25078 37886 50156 70787 75772 141574 238241 283148 476482 890269 952964 1344953 1780538 2689906 3561076 5379812 12501383 16915111 25002766 33830222 50005532 67660444 237526277 475052554 887598193 950105108 1775196386 3550392772 16864365667 33728731334 67457462668