977309633564 has 12 divisors (see below), whose sum is σ = 1865772936888. Its totient is φ = 444231651600.

The previous prime is 977309633561. The next prime is 977309633569. The reversal of 977309633564 is 465336903779.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 977309633497 and 977309633506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977309633561) 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 3 ways as a sum of consecutive naturals, for example, 11105791247 + ... + 11105791334.

It is an arithmetic number, because the mean of its divisors is an integer number (155481078074).

Almost surely, 2^977309633564 is an apocalyptic number.

It is an amenable number.

977309633564 is a deficient number, since it is larger than the sum of its proper divisors (888463303324).

977309633564 is a wasteful number, since it uses less digits than its factorization.

977309633564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22211582596 (or 22211582594 counting only the distinct ones).

The product of its (nonzero) digits is 77157360, while the sum is 62.

The spelling of 977309633564 in words is "nine hundred seventy-seven billion, three hundred nine million, six hundred thirty-three thousand, five hundred sixty-four".