99913089377 has 2 divisors, whose sum is σ = 99913089378. Its totient is φ = 99913089376.

The previous prime is 99913089343. The next prime is 99913089427. The reversal of 99913089377 is 77398031999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52475813776 + 47437275601 = 229076^2 + 217801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99913089377 is a prime.

It is not a weakly prime, because it can be changed into another prime (99913089277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49956544688 + 49956544689.

It is an arithmetic number, because the mean of its divisors is an integer number (49956544689).

Almost surely, 2^99913089377 is an apocalyptic number.

It is an amenable number.

99913089377 is a deficient number, since it is larger than the sum of its proper divisors (1).

99913089377 is an equidigital number, since it uses as much as digits as its factorization.

99913089377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23147208, while the sum is 65.

The spelling of 99913089377 in words is "ninety-nine billion, nine hundred thirteen million, eighty-nine thousand, three hundred seventy-seven".