977881262904 has 768 divisors, whose sum is σ = 3553175808000. Its totient is φ = 244882040832.

The previous prime is 977881262903. The next prime is 977881262983. The reversal of 977881262904 is 409262188779.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977881262903) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 606249202 + ... + 606250814.

It is an arithmetic number, because the mean of its divisors is an integer number (4626531000).

Almost surely, 2^977881262904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977881262904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1776587904000).

977881262904 is an abundant number, since it is smaller than the sum of its proper divisors (2575294545096).

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

977881262904 is a wasteful number, since it uses less digits than its factorization.

977881262904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 977881262904 in words is "nine hundred seventy-seven billion, eight hundred eighty-one million, two hundred sixty-two thousand, nine hundred four".