977988966846 has 8 divisors (see below), whose sum is σ = 1955977933704. Its totient is φ = 325996322280.

The previous prime is 977988966641. The next prime is 977988966847. The reversal of 977988966846 is 648669889779.

It is a sphenic number, since it is the product of 3 distinct primes.

977988966846 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977988966847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81499080565 + ... + 81499080576.

It is an arithmetic number, because the mean of its divisors is an integer number (244497241713).

Almost surely, 2^977988966846 is an apocalyptic number.

977988966846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

977988966846 is a wasteful number, since it uses less digits than its factorization.

977988966846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162998161146.

The product of its digits is 15801827328, while the sum is 87.

The spelling of 977988966846 in words is "nine hundred seventy-seven billion, nine hundred eighty-eight million, nine hundred sixty-six thousand, eight hundred forty-six".