971642579560 has 32 divisors (see below), whose sum is σ = 2207841316200. Its totient is φ = 384808940800.

The previous prime is 971642579539. The next prime is 971642579639. The reversal of 971642579560 is 65975246179.

It can be written as a sum of positive squares in 4 ways, for example, as 905013547684 + 66629031876 = 951322^2 + 258126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120248755 + ... + 120256834.

Almost surely, 2^971642579560 is an apocalyptic number.

It is an amenable number.

971642579560 is an abundant number, since it is smaller than the sum of its proper divisors (1236198736640).

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

971642579560 is a wasteful number, since it uses less digits than its factorization.

971642579560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240505701 (or 240505697 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 971642579560 in words is "nine hundred seventy-one billion, six hundred forty-two million, five hundred seventy-nine thousand, five hundred sixty".