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768464686053 = 33157181284427
BaseRepresentation
bin10110010111011000001…
…00001000101111100101
32201110112121212210211000
423023230010020233211
5100042303424423203
61345010001103513
7106343162025141
oct13135404105745
92643477783730
10768464686053
112769a4310669
12104b25327b99
13576097a96ac
14292a0064221
1514ec99e54a3
hexb2ec108be5

768464686053 has 16 divisors (see below), whose sum is σ = 1145717584960. Its totient is φ = 509046668208.

The previous prime is 768464686013. The next prime is 768464686081. The reversal of 768464686053 is 350686464867.

768464686053 is a `hidden beast` number, since 7 + 6 + 8 + 464 + 68 + 60 + 53 = 666.

It is not a de Polignac number, because 768464686053 - 222 = 768460491749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768464686013) 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 15 ways as a sum of consecutive naturals, for example, 90637975 + ... + 90646452.

It is an arithmetic number, because the mean of its divisors is an integer number (71607349060).

Almost surely, 2768464686053 is an apocalyptic number.

It is an amenable number.

768464686053 is a deficient number, since it is larger than the sum of its proper divisors (377252898907).

768464686053 is a wasteful number, since it uses less digits than its factorization.

768464686053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181284593 (or 181284587 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 768464686053 in words is "seven hundred sixty-eight billion, four hundred sixty-four million, six hundred eighty-six thousand, fifty-three".

Divisors: 1 3 9 27 157 471 1413 4239 181284427 543853281 1631559843 4894679529 28461655039 85384965117 256154895351 768464686053