74839997090 has 32 divisors (see below), whose sum is σ = 142651081584. Its totient is φ = 28172124160.

The previous prime is 74839997077. The next prime is 74839997117. The reversal of 74839997090 is 9079993847.

It can be written as a sum of positive squares in 8 ways, for example, as 44824088089 + 30015909001 = 211717^2 + 173251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2312420 + ... + 2344560.

Almost surely, 2^74839997090 is an apocalyptic number.

74839997090 is a deficient number, since it is larger than the sum of its proper divisors (67811084494).

74839997090 is a wasteful number, since it uses less digits than its factorization.

74839997090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45862.

The product of its (nonzero) digits is 30862944, while the sum is 65.

The spelling of 74839997090 in words is "seventy-four billion, eight hundred thirty-nine million, nine hundred ninety-seven thousand, ninety".