99990624272 has 40 divisors (see below), whose sum is σ = 241535796672. Its totient is φ = 38957385600.

The previous prime is 99990624263. The next prime is 99990624299. The reversal of 99990624272 is 27242609999.

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 7 ways as a sum of consecutive naturals, for example, 40579379 + ... + 40581842.

Almost surely, 2^99990624272 is an apocalyptic number.

It is an amenable number.

99990624272 is an abundant number, since it is smaller than the sum of its proper divisors (141545172400).

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

99990624272 is a wasteful number, since it uses less digits than its factorization.

99990624272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81161247 (or 81161241 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 99990624272 in words is "ninety-nine billion, nine hundred ninety million, six hundred twenty-four thousand, two hundred seventy-two".