74854333728 has 36 divisors (see below), whose sum is σ = 212867012358. Its totient is φ = 24951444480.

The previous prime is 74854333721. The next prime is 74854333733. The reversal of 74854333728 is 82733345847.

74854333728 is a `hidden beast` number, since 7 + 48 + 543 + 3 + 37 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70515740304 + 4338593424 = 265548^2 + 65868^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (74854333721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129955153 + ... + 129955728.

Almost surely, 2^74854333728 is an apocalyptic number.

It is an amenable number.

74854333728 is an abundant number, since it is smaller than the sum of its proper divisors (138012678630).

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

74854333728 is a wasteful number, since it uses less digits than its factorization.

74854333728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259910897 (or 259910886 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 54.

The spelling of 74854333728 in words is "seventy-four billion, eight hundred fifty-four million, three hundred thirty-three thousand, seven hundred twenty-eight".