74800693136 has 20 divisors (see below), whose sum is σ = 156074523612. Its totient is φ = 34523396736.

The previous prime is 74800693111. The next prime is 74800693139. The reversal of 74800693136 is 63139600847.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23026241536 + 51774451600 = 151744^2 + 227540^2 .

It is not an unprimeable number, because it can be changed into a prime (74800693139) 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, 179809151 + ... + 179809566.

Almost surely, 2^74800693136 is an apocalyptic number.

It is an amenable number.

74800693136 is an abundant number, since it is smaller than the sum of its proper divisors (81273830476).

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

74800693136 is a wasteful number, since it uses less digits than its factorization.

74800693136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359618738 (or 359618732 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 74800693136 in words is "seventy-four billion, eight hundred million, six hundred ninety-three thousand, one hundred thirty-six".