74896374839 has 32 divisors (see below), whose sum is σ = 90426040320. Its totient is φ = 61112361600.

The previous prime is 74896374823. The next prime is 74896374841. The reversal of 74896374839 is 93847369847.

It is a cyclic number.

It is not a de Polignac number, because 74896374839 - 2⁴ = 74896374823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74896374869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10636682 + ... + 10643720.

It is an arithmetic number, because the mean of its divisors is an integer number (2825813760).

Almost surely, 2^74896374839 is an apocalyptic number.

74896374839 is a deficient number, since it is larger than the sum of its proper divisors (15529665481).

74896374839 is a wasteful number, since it uses less digits than its factorization.

74896374839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111.

The product of its digits is 219469824, while the sum is 68.

The spelling of 74896374839 in words is "seventy-four billion, eight hundred ninety-six million, three hundred seventy-four thousand, eight hundred thirty-nine".