99975782277851 has 2 divisors, whose sum is σ = 99975782277852. Its totient is φ = 99975782277850.

The previous prime is 99975782277719. The next prime is 99975782277857. The reversal of 99975782277851 is 15877228757999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99975782277851 - 2²² = 99975778083547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (99975782277857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987891138925 + 49987891138926.

It is an arithmetic number, because the mean of its divisors is an integer number (49987891138926).

Almost surely, 2^{99975782277851} is an apocalyptic number.

99975782277851 is a deficient number, since it is larger than the sum of its proper divisors (1).

99975782277851 is an equidigital number, since it uses as much as digits as its factorization.

99975782277851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11202105600, while the sum is 86.

The spelling of 99975782277851 in words is "ninety-nine trillion, nine hundred seventy-five billion, seven hundred eighty-two million, two hundred seventy-seven thousand, eight hundred fifty-one".