977559955779 has 24 divisors (see below), whose sum is σ = 1494967735296. Its totient is φ = 566701418800.

The previous prime is 977559955769. The next prime is 977559955781.

977559955779 is nontrivially palindromic in base 10.

977559955779 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 977559955779 - 2¹⁷ = 977559824707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (977559955769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58535187 + ... + 58551884.

It is an arithmetic number, because the mean of its divisors is an integer number (62290322304).

Almost surely, 2^977559955779 is an apocalyptic number.

977559955779 is a deficient number, since it is larger than the sum of its proper divisors (517407779517).

977559955779 is a wasteful number, since it uses less digits than its factorization.

977559955779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117087119 (or 117087108 counting only the distinct ones).

The product of its digits is 9845600625, while the sum is 84.

The spelling of 977559955779 in words is "nine hundred seventy-seven billion, five hundred fifty-nine million, nine hundred fifty-five thousand, seven hundred seventy-nine".