74889027792 has 80 divisors (see below), whose sum is σ = 216968345280. Its totient is φ = 24729694848.

The previous prime is 74889027791. The next prime is 74889027797. The reversal of 74889027792 is 29772098847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74889027791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763843 + ... + 856290.

It is an arithmetic number, because the mean of its divisors is an integer number (2712104316).

Almost surely, 2^74889027792 is an apocalyptic number.

74889027792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74889027792 is an abundant number, since it is smaller than the sum of its proper divisors (142079317488).

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

74889027792 is a wasteful number, since it uses less digits than its factorization.

74889027792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620257 (or 1620245 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 74889027792 in words is "seventy-four billion, eight hundred eighty-nine million, twenty-seven thousand, seven hundred ninety-two".