74716538388 has 24 divisors (see below), whose sum is σ = 178392976608. Its totient is φ = 24326314656.

The previous prime is 74716538383. The next prime is 74716538389. The reversal of 74716538388 is 88383561747.

It is a happy number.

It is a super-2 number, since 2×74716538388² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74716538383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72399231 + ... + 72400262.

It is an arithmetic number, because the mean of its divisors is an integer number (7433040692).

Almost surely, 2^74716538388 is an apocalyptic number.

It is an amenable number.

74716538388 is an abundant number, since it is smaller than the sum of its proper divisors (103676438220).

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

74716538388 is a wasteful number, since it uses less digits than its factorization.

74716538388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144799543 (or 144799541 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The spelling of 74716538388 in words is "seventy-four billion, seven hundred sixteen million, five hundred thirty-eight thousand, three hundred eighty-eight".