77056057515144 has 16 divisors (see below), whose sum is σ = 192640143787920. Its totient is φ = 25685352505040.

The previous prime is 77056057515133. The next prime is 77056057515179. The reversal of 77056057515144 is 44151575065077.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605334531542 + ... + 1605334531589.

It is an arithmetic number, because the mean of its divisors is an integer number (12040008986745).

Almost surely, 2^{77056057515144} is an apocalyptic number.

It is an amenable number.

77056057515144 is an abundant number, since it is smaller than the sum of its proper divisors (115584086272776).

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

77056057515144 is a wasteful number, since it uses less digits than its factorization.

77056057515144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210669063140 (or 3210669063136 counting only the distinct ones).

The product of its (nonzero) digits is 20580000, while the sum is 57.

The spelling of 77056057515144 in words is "seventy-seven trillion, fifty-six billion, fifty-seven million, five hundred fifteen thousand, one hundred forty-four".