99111407292 has 18 divisors (see below), whose sum is σ = 250531612968. Its totient is φ = 33037135752.

The previous prime is 99111407279. The next prime is 99111407333. The reversal of 99111407292 is 29270411199.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1376547288 + ... + 1376547359.

Almost surely, 2^99111407292 is an apocalyptic number.

It is an amenable number.

99111407292 is an abundant number, since it is smaller than the sum of its proper divisors (151420205676).

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

99111407292 is a wasteful number, since it uses less digits than its factorization.

99111407292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753094657 (or 2753094652 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 99111407292 in words is "ninety-nine billion, one hundred eleven million, four hundred seven thousand, two hundred ninety-two".