977288677922 has 54 divisors (see below), whose sum is σ = 1522870871067. Its totient is φ = 470369571528.

The previous prime is 977288677921. The next prime is 977288677927. The reversal of 977288677922 is 229776882779.

It can be written as a sum of positive squares in only one way, i.e., 488644338961 + 488644338961 = 699031^2 + 699031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=699031.

It is a Duffinian number.

Its product of digits (597445632) is a multiple of the sum of its prime factors (588).

It is a self number, because there is not a number n which added to its sum of digits gives 977288677922.

It is not an unprimeable number, because it can be changed into a prime (977288677921) 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 26 ways as a sum of consecutive naturals, for example, 7030853729 + ... + 7030853867.

Almost surely, 2^977288677922 is an apocalyptic number.

977288677922 is a deficient number, since it is larger than the sum of its proper divisors (545582193145).

977288677922 is an equidigital number, since it uses as much as digits as its factorization.

977288677922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 295 counting only the distinct ones).

The product of its digits is 597445632, while the sum is 74.

The spelling of 977288677922 in words is "nine hundred seventy-seven billion, two hundred eighty-eight million, six hundred seventy-seven thousand, nine hundred twenty-two".