99876367899 has 80 divisors (see below), whose sum is σ = 186117778176. Its totient is φ = 51854644800.

The previous prime is 99876367867. The next prime is 99876367901.

99876367899 is a `hidden beast` number, since 99 + 87 + 6 + 367 + 8 + 99 = 666.

99876367899 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99876367899 - 2⁵ = 99876367867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (99876367099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15196284 + ... + 15202854.

Almost surely, 2^99876367899 is an apocalyptic number.

99876367899 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99876367899 is a deficient number, since it is larger than the sum of its proper divisors (86241410277).

99876367899 is a wasteful number, since it uses less digits than its factorization.

99876367899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038 (or 9029 counting only the distinct ones).

The product of its digits is 2222131968, while the sum is 81.

The spelling of 99876367899 in words is "ninety-nine billion, eight hundred seventy-six million, three hundred sixty-seven thousand, eight hundred ninety-nine".