977447622732 has 96 divisors (see below), whose sum is σ = 2664589939200. Its totient is φ = 278759557440.

The previous prime is 977447622727. The next prime is 977447622743. The reversal of 977447622732 is 237226744779.

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, 2034382 + ... + 2468522.

It is an arithmetic number, because the mean of its divisors is an integer number (27756145200).

Almost surely, 2^977447622732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977447622732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332294969600).

977447622732 is an abundant number, since it is smaller than the sum of its proper divisors (1687142316468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977447622732 is a wasteful number, since it uses less digits than its factorization.

977447622732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434716 (or 434700 counting only the distinct ones).

The product of its digits is 49787136, while the sum is 60.

The spelling of 977447622732 in words is "nine hundred seventy-seven billion, four hundred forty-seven million, six hundred twenty-two thousand, seven hundred thirty-two".