99494810051 has 32 divisors (see below), whose sum is σ = 129068069760. Its totient is φ = 74572452864.

The previous prime is 99494810039. The next prime is 99494810059. The reversal of 99494810051 is 15001849499.

It is not a de Polignac number, because 99494810051 - 2²⁶ = 99427701187 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99494810059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215810 + ... + 495543.

It is an arithmetic number, because the mean of its divisors is an integer number (4033377180).

Almost surely, 2^99494810051 is an apocalyptic number.

99494810051 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99494810051 is a deficient number, since it is larger than the sum of its proper divisors (29573259709).

99494810051 is a wasteful number, since it uses less digits than its factorization.

99494810051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711455.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 99494810051 in words is "ninety-nine billion, four hundred ninety-four million, eight hundred ten thousand, fifty-one".