99812937796997 has 2 divisors, whose sum is σ = 99812937796998. Its totient is φ = 99812937796996.

The previous prime is 99812937796937. The next prime is 99812937797003. The reversal of 99812937796997 is 79969773921899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98113006850401 + 1699930946596 = 9905201^2 + 1303814^2 .

It is a cyclic number.

It is not a de Polignac number, because 99812937796997 - 2¹² = 99812937792901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99812937796937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49906468898498 + 49906468898499.

It is an arithmetic number, because the mean of its divisors is an integer number (49906468898499).

Almost surely, 2^{99812937796997} is an apocalyptic number.

It is an amenable number.

99812937796997 is a deficient number, since it is larger than the sum of its proper divisors (1).

99812937796997 is an equidigital number, since it uses as much as digits as its factorization.

99812937796997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52497867744, while the sum is 95.

The spelling of 99812937796997 in words is "ninety-nine trillion, eight hundred twelve billion, nine hundred thirty-seven million, seven hundred ninety-six thousand, nine hundred ninety-seven".