74202992920 has 128 divisors (see below), whose sum is σ = 201508876800. Its totient is φ = 24022987776.

The previous prime is 74202992917. The next prime is 74202993019. The reversal of 74202992920 is 2929920247.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1610524 + ... + 1655956.

It is an arithmetic number, because the mean of its divisors is an integer number (1574288100).

Almost surely, 2^74202992920 is an apocalyptic number.

74202992920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74202992920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100754438400).

74202992920 is an abundant number, since it is smaller than the sum of its proper divisors (127305883880).

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

74202992920 is a wasteful number, since it uses less digits than its factorization.

74202992920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45777 (or 45773 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 74202992920 in words is "seventy-four billion, two hundred two million, nine hundred ninety-two thousand, nine hundred twenty".