977916999108 has 48 divisors (see below), whose sum is σ = 2721160350720. Its totient is φ = 267256819104.

The previous prime is 977916999107. The next prime is 977916999167. The reversal of 977916999108 is 801999619779.

It is a self number, because there is not a number n which added to its sum of digits gives 977916999108.

It is not an unprimeable number, because it can be changed into a prime (977916999107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253082178 + ... + 253086041.

It is an arithmetic number, because the mean of its divisors is an integer number (56690840640).

Almost surely, 2^977916999108 is an apocalyptic number.

It is an amenable number.

977916999108 is an abundant number, since it is smaller than the sum of its proper divisors (1743243351612).

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

977916999108 is a wasteful number, since it uses less digits than its factorization.

977916999108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506168256 (or 506168254 counting only the distinct ones).

The product of its (nonzero) digits is 138883248, while the sum is 75.

The spelling of 977916999108 in words is "nine hundred seventy-seven billion, nine hundred sixteen million, nine hundred ninety-nine thousand, one hundred eight".