74720754752 has 28 divisors (see below), whose sum is σ = 169455998400. Its totient is φ = 32023180416.

The previous prime is 74720754751. The next prime is 74720754767. The reversal of 74720754752 is 25745702747.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 74720754752.

It is not an unprimeable number, because it can be changed into a prime (74720754751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83393252 + ... + 83394147.

Almost surely, 2^74720754752 is an apocalyptic number.

It is an amenable number.

74720754752 is an abundant number, since it is smaller than the sum of its proper divisors (94735243648).

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

74720754752 is a wasteful number, since it uses less digits than its factorization.

74720754752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166787418 (or 166787408 counting only the distinct ones).

The product of its (nonzero) digits is 3841600, while the sum is 50.

The spelling of 74720754752 in words is "seventy-four billion, seven hundred twenty million, seven hundred fifty-four thousand, seven hundred fifty-two".