99999999793 has 16 divisors (see below), whose sum is σ = 106464352320. Its totient is φ = 93601728000.

The previous prime is 99999999769. The next prime is 99999999821. The reversal of 99999999793 is 39799999999.

It is not a de Polignac number, because 99999999793 - 2⁵ = 99999999761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99999999698 and 99999999707.

It is not an unprimeable number, because it can be changed into a prime (99999999713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2279718 + ... + 2323168.

It is an arithmetic number, because the mean of its divisors is an integer number (6654022020).

Almost surely, 2^99999999793 is an apocalyptic number.

It is an amenable number.

99999999793 is a deficient number, since it is larger than the sum of its proper divisors (6464352527).

99999999793 is a wasteful number, since it uses less digits than its factorization.

99999999793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44208.

The product of its digits is 8135830269, while the sum is 91.

The spelling of 99999999793 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred ninety-three".