974263639923 has 72 divisors (see below), whose sum is σ = 1677446171856. Its totient is φ = 542984601600.

The previous prime is 974263639913. The next prime is 974263639931. The reversal of 974263639923 is 329936362479.

974263639923 is a `hidden beast` number, since 97 + 426 + 3 + 6 + 39 + 92 + 3 = 666.

It is not a de Polignac number, because 974263639923 - 2⁶ = 974263639859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (974263639913) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 90598515 + ... + 90609267.

It is an arithmetic number, because the mean of its divisors is an integer number (23297863498).

Almost surely, 2^974263639923 is an apocalyptic number.

974263639923 is a deficient number, since it is larger than the sum of its proper divisors (703182531933).

974263639923 is a wasteful number, since it uses less digits than its factorization.

974263639923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825 (or 15815 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 63.

The spelling of 974263639923 in words is "nine hundred seventy-four billion, two hundred sixty-three million, six hundred thirty-nine thousand, nine hundred twenty-three".