977746861198 has 32 divisors (see below), whose sum is σ = 1481008995648. Its totient is φ = 484101446400.

The previous prime is 977746861151. The next prime is 977746861243. The reversal of 977746861198 is 891168647779.

It is a self number, because there is not a number n which added to its sum of digits gives 977746861198.

It is a congruent number.

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, 118928728 + ... + 118936948.

It is an arithmetic number, because the mean of its divisors is an integer number (46281531114).

Almost surely, 2^977746861198 is an apocalyptic number.

977746861198 is a deficient number, since it is larger than the sum of its proper divisors (503262134450).

977746861198 is a wasteful number, since it uses less digits than its factorization.

977746861198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9628.

The product of its digits is 256048128, while the sum is 73.

The spelling of 977746861198 in words is "nine hundred seventy-seven billion, seven hundred forty-six million, eight hundred sixty-one thousand, one hundred ninety-eight".