99289621670377 has 2 divisors, whose sum is σ = 99289621670378. Its totient is φ = 99289621670376.

The previous prime is 99289621670359. The next prime is 99289621670461. The reversal of 99289621670377 is 77307612698299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96458896179801 + 2830725490576 = 9821349^2 + 1682476^2 .

It is a cyclic number.

It is not a de Polignac number, because 99289621670377 - 2⁷ = 99289621670249 is a prime.

It is not a weakly prime, because it can be changed into another prime (99289621670177) 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, 49644810835188 + 49644810835189.

It is an arithmetic number, because the mean of its divisors is an integer number (49644810835189).

Almost surely, 2^{99289621670377} is an apocalyptic number.

It is an amenable number.

99289621670377 is a deficient number, since it is larger than the sum of its proper divisors (1).

99289621670377 is an equidigital number, since it uses as much as digits as its factorization.

99289621670377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864162432, while the sum is 76.

The spelling of 99289621670377 in words is "ninety-nine trillion, two hundred eighty-nine billion, six hundred twenty-one million, six hundred seventy thousand, three hundred seventy-seven".