971859489632 has 12 divisors (see below), whose sum is σ = 1913348370276. Its totient is φ = 485929744800.

The previous prime is 971859489617. The next prime is 971859489649. The reversal of 971859489632 is 236984958179.

971859489632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15185304494 + ... + 15185304557.

It is an arithmetic number, because the mean of its divisors is an integer number (159445697523).

Almost surely, 2^971859489632 is an apocalyptic number.

It is an amenable number.

971859489632 is a deficient number, since it is larger than the sum of its proper divisors (941488880644).

971859489632 is a wasteful number, since it uses less digits than its factorization.

971859489632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30370609061 (or 30370609053 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 71.

The spelling of 971859489632 in words is "nine hundred seventy-one billion, eight hundred fifty-nine million, four hundred eighty-nine thousand, six hundred thirty-two".