99876357991 has 8 divisors (see below), whose sum is σ = 100096854768. Its totient is φ = 99656064000.

The previous prime is 99876357983. The next prime is 99876358009. The reversal of 99876357991 is 19975367899.

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

It is a cyclic number.

It is not a de Polignac number, because 99876357991 - 2³ = 99876357983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99876357491) 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 7 ways as a sum of consecutive naturals, for example, 957421 + ... + 1056601.

It is an arithmetic number, because the mean of its divisors is an integer number (12512106846).

Almost surely, 2^99876357991 is an apocalyptic number.

99876357991 is a deficient number, since it is larger than the sum of its proper divisors (220496777).

99876357991 is a wasteful number, since it uses less digits than its factorization.

99876357991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101393.

The product of its digits is 231472080, while the sum is 73.

The spelling of 99876357991 in words is "ninety-nine billion, eight hundred seventy-six million, three hundred fifty-seven thousand, nine hundred ninety-one".