99240979572 has 96 divisors (see below), whose sum is σ = 296362967040. Its totient is φ = 28131274080.

The previous prime is 99240979553. The next prime is 99240979619. The reversal of 99240979572 is 27597904299.

99240979572 is a `hidden beast` number, since 9 + 92 + 409 + 79 + 5 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420804 + ... + 612827.

It is an arithmetic number, because the mean of its divisors is an integer number (3087114240).

Almost surely, 2^99240979572 is an apocalyptic number.

It is an amenable number.

99240979572 is an abundant number, since it is smaller than the sum of its proper divisors (197121987468).

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

99240979572 is a wasteful number, since it uses less digits than its factorization.

99240979572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033778 (or 1033770 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 99240979572 in words is "ninety-nine billion, two hundred forty million, nine hundred seventy-nine thousand, five hundred seventy-two".