977498974985 has 32 divisors (see below), whose sum is σ = 1338098227200. Its totient is φ = 679098866688.

The previous prime is 977498974979. The next prime is 977498974993. The reversal of 977498974985 is 589479894779.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 977498974985 - 2²² = 977494780681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 977498974897 and 977498974906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2466524 + ... + 2835266.

It is an arithmetic number, because the mean of its divisors is an integer number (41815569600).

Almost surely, 2^977498974985 is an apocalyptic number.

It is an amenable number.

977498974985 is a deficient number, since it is larger than the sum of its proper divisors (360599252215).

977498974985 is a wasteful number, since it uses less digits than its factorization.

977498974985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371177.

The product of its digits is 11522165760, while the sum is 86.

The spelling of 977498974985 in words is "nine hundred seventy-seven billion, four hundred ninety-eight million, nine hundred seventy-four thousand, nine hundred eighty-five".