76634157407 has 2 divisors, whose sum is σ = 76634157408. Its totient is φ = 76634157406.

The previous prime is 76634157377. The next prime is 76634157463. The reversal of 76634157407 is 70475143667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76634157407 - 2²⁸ = 76365721951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76634157007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38317078703 + 38317078704.

It is an arithmetic number, because the mean of its divisors is an integer number (38317078704).

Almost surely, 2^76634157407 is an apocalyptic number.

76634157407 is a deficient number, since it is larger than the sum of its proper divisors (1).

76634157407 is an equidigital number, since it uses as much as digits as its factorization.

76634157407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 76634157407 in words is "seventy-six billion, six hundred thirty-four million, one hundred fifty-seven thousand, four hundred seven".