768756450077 has 32 divisors (see below), whose sum is σ = 966037847040. Its totient is φ = 594294549120.

The previous prime is 768756450071. The next prime is 768756450107. The reversal of 768756450077 is 770054657867.

It is a cyclic number.

It is not a de Polignac number, because 768756450077 - 2²⁰ = 768755401501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768756450071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15312338 + ... + 15362460.

It is an arithmetic number, because the mean of its divisors is an integer number (30188682720).

Almost surely, 2^768756450077 is an apocalyptic number.

768756450077 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

768756450077 is a deficient number, since it is larger than the sum of its proper divisors (197281396963).

768756450077 is a wasteful number, since it uses less digits than its factorization.

768756450077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51713.

The product of its (nonzero) digits is 69148800, while the sum is 62.

The spelling of 768756450077 in words is "seven hundred sixty-eight billion, seven hundred fifty-six million, four hundred fifty thousand, seventy-seven".