77056907376 has 40 divisors (see below), whose sum is σ = 209540715520. Its totient is φ = 24333759936.

The previous prime is 77056907363. The next prime is 77056907399. The reversal of 77056907376 is 67370965077.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 42245200 + ... + 42247023.

It is an arithmetic number, because the mean of its divisors is an integer number (5238517888).

Almost surely, 2^77056907376 is an apocalyptic number.

77056907376 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77056907376 is an abundant number, since it is smaller than the sum of its proper divisors (132483808144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77056907376 is a wasteful number, since it uses less digits than its factorization.

77056907376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84492253 (or 84492247 counting only the distinct ones).

The product of its (nonzero) digits is 11668860, while the sum is 57.

The spelling of 77056907376 in words is "seventy-seven billion, fifty-six million, nine hundred seven thousand, three hundred seventy-six".