977588885779 has 16 divisors (see below), whose sum is σ = 1077263276544. Its totient is φ = 879718924000.

The previous prime is 977588885771. The next prime is 977588885783.

977588885779 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 977588885779 - 2³ = 977588885771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 977588885779.

It is not an unprimeable number, because it can be changed into a prime (977588885771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927782 + ... + 5122324.

It is an arithmetic number, because the mean of its divisors is an integer number (67328954784).

Almost surely, 2^977588885779 is an apocalyptic number.

977588885779 is a deficient number, since it is larger than the sum of its proper divisors (99674390765).

977588885779 is a wasteful number, since it uses less digits than its factorization.

977588885779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199178.

The product of its digits is 19914854400, while the sum is 88.

The spelling of 977588885779 in words is "nine hundred seventy-seven billion, five hundred eighty-eight million, eight hundred eighty-five thousand, seven hundred seventy-nine".