99891048199 has 2 divisors, whose sum is σ = 99891048200. Its totient is φ = 99891048198.

The previous prime is 99891048091. The next prime is 99891048217. The reversal of 99891048199 is 99184019899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99891048199 - 2⁹ = 99891047687 is a prime.

It is a super-2 number, since 2×99891048199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99891049199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49945524099 + 49945524100.

It is an arithmetic number, because the mean of its divisors is an integer number (49945524100).

Almost surely, 2^99891048199 is an apocalyptic number.

99891048199 is a deficient number, since it is larger than the sum of its proper divisors (1).

99891048199 is an equidigital number, since it uses as much as digits as its factorization.

99891048199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15116544, while the sum is 67.

The spelling of 99891048199 in words is "ninety-nine billion, eight hundred ninety-one million, forty-eight thousand, one hundred ninety-nine".