99111987267 has 8 divisors (see below), whose sum is σ = 132251842320. Its totient is φ = 66023395200.

The previous prime is 99111987259. The next prime is 99111987347. The reversal of 99111987267 is 76278911199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99111987267 - 2³ = 99111987259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99111987267.

It is not an unprimeable number, because it can be changed into a prime (99111987367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12811234 + ... + 12818967.

It is an arithmetic number, because the mean of its divisors is an integer number (16531480290).

Almost surely, 2^99111987267 is an apocalyptic number.

99111987267 is a deficient number, since it is larger than the sum of its proper divisors (33139855053).

99111987267 is a wasteful number, since it uses less digits than its factorization.

99111987267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25631493.

The product of its digits is 3429216, while the sum is 60.

The spelling of 99111987267 in words is "ninety-nine billion, one hundred eleven million, nine hundred eighty-seven thousand, two hundred sixty-seven".