99313812621849 has 64 divisors (see below), whose sum is σ = 161328219955200. Its totient is φ = 53079559034112.

The previous prime is 99313812621797. The next prime is 99313812621911. The reversal of 99313812621849 is 94812621831399.

It is not a de Polignac number, because 99313812621849 - 2⁹ = 99313812621337 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99313812621849.

It is not an unprimeable number, because it can be changed into a prime (99313812621649) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 478164307 + ... + 478371959.

It is an arithmetic number, because the mean of its divisors is an integer number (2520753436800).

Almost surely, 2^{99313812621849} is an apocalyptic number.

It is an amenable number.

99313812621849 is a deficient number, since it is larger than the sum of its proper divisors (62014407333351).

99313812621849 is a wasteful number, since it uses less digits than its factorization.

99313812621849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222934.

The product of its digits is 40310784, while the sum is 66.

The spelling of 99313812621849 in words is "ninety-nine trillion, three hundred thirteen billion, eight hundred twelve million, six hundred twenty-one thousand, eight hundred forty-nine".