99812937796993 has 8 divisors (see below), whose sum is σ = 100547224192800. Its totient is φ = 99078882940128.

The previous prime is 99812937796937. The next prime is 99812937796997. The reversal of 99812937796993 is 39969773921899.

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 99812937796993 - 2¹⁷ = 99812937665921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99812937796898 and 99812937796907.

It is not an unprimeable number, because it can be changed into a prime (99812937796997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57019348 + ... + 58743781.

It is an arithmetic number, because the mean of its divisors is an integer number (12568403024100).

Almost surely, 2^{99812937796993} is an apocalyptic number.

It is an amenable number.

99812937796993 is a deficient number, since it is larger than the sum of its proper divisors (734286395807).

99812937796993 is a wasteful number, since it uses less digits than its factorization.

99812937796993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115769471.

The product of its digits is 22499086176, while the sum is 91.

The spelling of 99812937796993 in words is "ninety-nine trillion, eight hundred twelve billion, nine hundred thirty-seven million, seven hundred ninety-six thousand, nine hundred ninety-three".