974042639938 has 24 divisors (see below), whose sum is σ = 1543277781612. Its totient is φ = 461009083392.

The previous prime is 974042639929. The next prime is 974042639939. The reversal of 974042639938 is 839936240479.

It is a happy number.

974042639938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 955343991889 + 18698648049 = 977417^2 + 136743^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 974042639938.

It is not an unprimeable number, because it can be changed into a prime (974042639939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324406 + ... + 1432942.

Almost surely, 2^974042639938 is an apocalyptic number.

974042639938 is a deficient number, since it is larger than the sum of its proper divisors (569235141674).

974042639938 is a wasteful number, since it uses less digits than its factorization.

974042639938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109794 (or 1109775 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 64.

The spelling of 974042639938 in words is "nine hundred seventy-four billion, forty-two million, six hundred thirty-nine thousand, nine hundred thirty-eight".