99812937796990 has 16 divisors (see below), whose sum is σ = 195996314219760. Its totient is φ = 36295613744320.

The previous prime is 99812937796937. The next prime is 99812937796997. The reversal of 99812937796990 is 9969773921899.

It is a congruent number.

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, 453695171695 + ... + 453695171914.

It is an arithmetic number, because the mean of its divisors is an integer number (12249769638735).

Almost surely, 2^{99812937796990} is an apocalyptic number.

99812937796990 is a deficient number, since it is larger than the sum of its proper divisors (96183376422770).

99812937796990 is a wasteful number, since it uses less digits than its factorization.

99812937796990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907390343627.

The product of its (nonzero) digits is 7499695392, while the sum is 88.

The spelling of 99812937796990 in words is "ninety-nine trillion, eight hundred twelve billion, nine hundred thirty-seven million, seven hundred ninety-six thousand, nine hundred ninety".