76651500857 has 2 divisors, whose sum is σ = 76651500858. Its totient is φ = 76651500856.

The previous prime is 76651500853. The next prime is 76651500881. The reversal of 76651500857 is 75800515667.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66100924201 + 10550576656 = 257101^2 + 102716^2 .

It is a cyclic number.

It is not a de Polignac number, because 76651500857 - 2² = 76651500853 is a prime.

It is not a weakly prime, because it can be changed into another prime (76651500853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38325750428 + 38325750429.

It is an arithmetic number, because the mean of its divisors is an integer number (38325750429).

Almost surely, 2^76651500857 is an apocalyptic number.

It is an amenable number.

76651500857 is a deficient number, since it is larger than the sum of its proper divisors (1).

76651500857 is an equidigital number, since it uses as much as digits as its factorization.

76651500857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 76651500857 in words is "seventy-six billion, six hundred fifty-one million, five hundred thousand, eight hundred fifty-seven".