99888888888867 has 32 divisors (see below), whose sum is σ = 144479304248832. Its totient is φ = 61020482598144.

The previous prime is 99888888888853. The next prime is 99888888888889. The reversal of 99888888888867 is 76888888888899.

It is not a de Polignac number, because 99888888888867 - 2⁸ = 99888888888611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99888888888827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580842388 + ... + 581014334.

It is an arithmetic number, because the mean of its divisors is an integer number (4514978257776).

Almost surely, 2^{99888888888867} is an apocalyptic number.

99888888888867 is a deficient number, since it is larger than the sum of its proper divisors (44590415359965).

99888888888867 is a wasteful number, since it uses less digits than its factorization.

99888888888867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280827.

The product of its digits is 3652869685248, while the sum is 111.

The spelling of 99888888888867 in words is "ninety-nine trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred sixty-seven".