76459792681 has 2 divisors, whose sum is σ = 76459792682. Its totient is φ = 76459792680.

The previous prime is 76459792667. The next prime is 76459792727. The reversal of 76459792681 is 18629795467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62770792681 + 13689000000 = 250541^2 + 117000^2 .

It is a cyclic number.

It is not a de Polignac number, because 76459792681 - 2⁹ = 76459792169 is a prime.

It is a super-2 number, since 2×76459792681² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76459792621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38229896340 + 38229896341.

It is an arithmetic number, because the mean of its divisors is an integer number (38229896341).

Almost surely, 2^76459792681 is an apocalyptic number.

It is an amenable number.

76459792681 is a deficient number, since it is larger than the sum of its proper divisors (1).

76459792681 is an equidigital number, since it uses as much as digits as its factorization.

76459792681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The spelling of 76459792681 in words is "seventy-six billion, four hundred fifty-nine million, seven hundred ninety-two thousand, six hundred eighty-one".