74499239568 has 40 divisors (see below), whose sum is σ = 207260706688. Its totient is φ = 22922842752.

The previous prime is 74499239561. The next prime is 74499239593. The reversal of 74499239568 is 86593299447.

It is a junction number, because it is equal to n+sod(n) for n = 74499239499 and 74499239508.

It is not an unprimeable number, because it can be changed into a prime (74499239561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59694280 + ... + 59695527.

Almost surely, 2^74499239568 is an apocalyptic number.

74499239568 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

74499239568 is an abundant number, since it is smaller than the sum of its proper divisors (132761467120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74499239568 is a wasteful number, since it uses less digits than its factorization.

74499239568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119389831 (or 119389825 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 66.

The spelling of 74499239568 in words is "seventy-four billion, four hundred ninety-nine million, two hundred thirty-nine thousand, five hundred sixty-eight".