977087339568 has 80 divisors (see below), whose sum is σ = 2804759372800. Its totient is φ = 325677568320.

The previous prime is 977087339563. The next prime is 977087339587. The reversal of 977087339568 is 865933780779.

977087339568 is a `hidden beast` number, since 97 + 70 + 87 + 3 + 395 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 977087339496 and 977087339505.

It is not an unprimeable number, because it can be changed into a prime (977087339563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9261033 + ... + 9365943.

It is an arithmetic number, because the mean of its divisors is an integer number (35059492160).

Almost surely, 2^977087339568 is an apocalyptic number.

It is an amenable number.

977087339568 is an abundant number, since it is smaller than the sum of its proper divisors (1827672033232).

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

977087339568 is a wasteful number, since it uses less digits than its factorization.

977087339568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126487 (or 126475 counting only the distinct ones).

The product of its (nonzero) digits is 480090240, while the sum is 72.

The spelling of 977087339568 in words is "nine hundred seventy-seven billion, eighty-seven million, three hundred thirty-nine thousand, five hundred sixty-eight".