977879974608 has 240 divisors, whose sum is σ = 2836736937216. Its totient is φ = 314247997440.

The previous prime is 977879974607. The next prime is 977879974657. The reversal of 977879974608 is 806479978779.

977879974608 is a `hidden beast` number, since 9 + 77 + 87 + 9 + 9 + 7 + 460 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977879974601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 338716941 + ... + 338719827.

Almost surely, 2^977879974608 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 977879974608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418368468608).

977879974608 is an abundant number, since it is smaller than the sum of its proper divisors (1858856962608).

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

977879974608 is a wasteful number, since it uses less digits than its factorization.

977879974608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 2688505344, while the sum is 81.

The spelling of 977879974608 in words is "nine hundred seventy-seven billion, eight hundred seventy-nine million, nine hundred seventy-four thousand, six hundred eight".