99899688034272 has 192 divisors, whose sum is σ = 312114285504000. Its totient is φ = 27373577226240.

The previous prime is 99899688034249. The next prime is 99899688034283. The reversal of 99899688034272 is 27243088699899.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14298354 + ... + 20105777.

It is an arithmetic number, because the mean of its divisors is an integer number (1625595237000).

Almost surely, 2^{99899688034272} is an apocalyptic number.

It is an amenable number.

99899688034272 is an abundant number, since it is smaller than the sum of its proper divisors (212214597469728).

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

99899688034272 is a wasteful number, since it uses less digits than its factorization.

99899688034272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34404329 (or 34404321 counting only the distinct ones).

The product of its (nonzero) digits is 6772211712, while the sum is 84.

The spelling of 99899688034272 in words is "ninety-nine trillion, eight hundred ninety-nine billion, six hundred eighty-eight million, thirty-four thousand, two hundred seventy-two".