99974392011 has 24 divisors (see below), whose sum is σ = 155586587520. Its totient is φ = 61494667776.

The previous prime is 99974391973. The next prime is 99974392079. The reversal of 99974392011 is 11029347999.

It is a happy number.

99974392011 is a `hidden beast` number, since 99 + 97 + 439 + 20 + 11 = 666.

It is not a de Polignac number, because 99974392011 - 2⁶ = 99974391947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99974392811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64635 + ... + 451803.

It is an arithmetic number, because the mean of its divisors is an integer number (6482774480).

Almost surely, 2^99974392011 is an apocalyptic number.

99974392011 is a deficient number, since it is larger than the sum of its proper divisors (55612195509).

99974392011 is a wasteful number, since it uses less digits than its factorization.

99974392011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389395 (or 389392 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The spelling of 99974392011 in words is "ninety-nine billion, nine hundred seventy-four million, three hundred ninety-two thousand, eleven".