74149425720 has 96 divisors (see below), whose sum is σ = 241019316720. Its totient is φ = 19770416640.

The previous prime is 74149425697. The next prime is 74149425737. The reversal of 74149425720 is 2752494147.

74149425720 is a `hidden beast` number, since 74 + 1 + 4 + 9 + 4 + 2 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4777012 + ... + 4792508.

Almost surely, 2^74149425720 is an apocalyptic number.

It is an amenable number.

74149425720 is an abundant number, since it is smaller than the sum of its proper divisors (166869891000).

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

74149425720 is a wasteful number, since it uses less digits than its factorization.

74149425720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28805 (or 28798 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 74149425720 in words is "seventy-four billion, one hundred forty-nine million, four hundred twenty-five thousand, seven hundred twenty".