99689307192 has 48 divisors (see below), whose sum is σ = 281730655440. Its totient is φ = 31784995968.

The previous prime is 99689307173. The next prime is 99689307199. The reversal of 99689307192 is 29170398699.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99689307199) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 30097773 + ... + 30101084.

It is an arithmetic number, because the mean of its divisors is an integer number (5869388655).

Almost surely, 2^99689307192 is an apocalyptic number.

99689307192 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

99689307192 is an abundant number, since it is smaller than the sum of its proper divisors (182041348248).

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

99689307192 is a wasteful number, since it uses less digits than its factorization.

99689307192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60198892 (or 60198885 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 99689307192 in words is "ninety-nine billion, six hundred eighty-nine million, three hundred seven thousand, one hundred ninety-two".