74239312923 has 6 divisors (see below), whose sum is σ = 107234563124. Its totient is φ = 49492875276.

The previous prime is 74239312867. The next prime is 74239312967. The reversal of 74239312923 is 32921393247.

It is not a de Polignac number, because 74239312923 - 2¹² = 74239308827 is a prime.

It is a super-2 number, since 2×74239312923² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74239312423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4124406265 + ... + 4124406282.

Almost surely, 2^74239312923 is an apocalyptic number.

74239312923 is a deficient number, since it is larger than the sum of its proper divisors (32995250201).

74239312923 is a wasteful number, since it uses less digits than its factorization.

74239312923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8248812553 (or 8248812550 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The spelling of 74239312923 in words is "seventy-four billion, two hundred thirty-nine million, three hundred twelve thousand, nine hundred twenty-three".