977487708990 has 64 divisors (see below), whose sum is σ = 2526531206976. Its totient is φ = 240602698752.

The previous prime is 977487708979. The next prime is 977487709031. The reversal of 977487708990 is 99807784779.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17636602 + ... + 17691938.

It is an arithmetic number, because the mean of its divisors is an integer number (39477050109).

Almost surely, 2^977487708990 is an apocalyptic number.

977487708990 is an abundant number, since it is smaller than the sum of its proper divisors (1549043497986).

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

977487708990 is a wasteful number, since it uses less digits than its factorization.

977487708990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100653.

The product of its (nonzero) digits is 448084224, while the sum is 75.

The spelling of 977487708990 in words is "nine hundred seventy-seven billion, four hundred eighty-seven million, seven hundred eight thousand, nine hundred ninety".