77428652976 has 80 divisors (see below), whose sum is σ = 224992826720. Its totient is φ = 25809539328.

The previous prime is 77428652969. The next prime is 77428653019. The reversal of 77428652976 is 67925682477.

77428652976 is a `hidden beast` number, since 77 + 428 + 6 + 52 + 97 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071385 + ... + 1141368.

It is an arithmetic number, because the mean of its divisors is an integer number (2812410334).

Almost surely, 2^77428652976 is an apocalyptic number.

It is an amenable number.

77428652976 is an abundant number, since it is smaller than the sum of its proper divisors (147564173744).

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

77428652976 is an equidigital number, since it uses as much as digits as its factorization.

77428652976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212782 (or 2212758 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 77428652976 in words is "seventy-seven billion, four hundred twenty-eight million, six hundred fifty-two thousand, nine hundred seventy-six".