76440813357 has 32 divisors (see below), whose sum is σ = 109055232000. Its totient is φ = 47488272192.

The previous prime is 76440813353. The next prime is 76440813377. The reversal of 76440813357 is 75331804467.

It is not a de Polignac number, because 76440813357 - 2² = 76440813353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76440813353) 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, 831088 + ... + 918470.

It is an arithmetic number, because the mean of its divisors is an integer number (3407976000).

Almost surely, 2^76440813357 is an apocalyptic number.

It is an amenable number.

76440813357 is a deficient number, since it is larger than the sum of its proper divisors (32614418643).

76440813357 is a wasteful number, since it uses less digits than its factorization.

76440813357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87657.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 76440813357 in words is "seventy-six billion, four hundred forty million, eight hundred thirteen thousand, three hundred fifty-seven".