977852212550 has 12 divisors (see below), whose sum is σ = 1818805115436. Its totient is φ = 391140885000.

The previous prime is 977852212543. The next prime is 977852212583. The reversal of 977852212550 is 55212258779.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 977852212492 and 977852212501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9778522076 + ... + 9778522175.

It is an arithmetic number, because the mean of its divisors is an integer number (151567092953).

Almost surely, 2^977852212550 is an apocalyptic number.

977852212550 is a deficient number, since it is larger than the sum of its proper divisors (840952902886).

977852212550 is a wasteful number, since it uses less digits than its factorization.

977852212550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19557044263 (or 19557044258 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 53.

The spelling of 977852212550 in words is "nine hundred seventy-seven billion, eight hundred fifty-two million, two hundred twelve thousand, five hundred fifty".