977601365644 has 12 divisors (see below), whose sum is σ = 1765989563968. Its totient is φ = 473032918800.

The previous prime is 977601365641. The next prime is 977601365701. The reversal of 977601365644 is 446563106779.

It is a super-3 number, since 3×977601365644³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (977601365641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3941940867 + ... + 3941941114.

Almost surely, 2^977601365644 is an apocalyptic number.

It is an amenable number.

977601365644 is a deficient number, since it is larger than the sum of its proper divisors (788388198324).

977601365644 is a wasteful number, since it uses less digits than its factorization.

977601365644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883882016 (or 7883882014 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 977601365644 in words is "nine hundred seventy-seven billion, six hundred one million, three hundred sixty-five thousand, six hundred forty-four".