79887552799 has 2 divisors, whose sum is σ = 79887552800. Its totient is φ = 79887552798.

The previous prime is 79887552763. The next prime is 79887552809. The reversal of 79887552799 is 99725578897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79887552799 - 2⁹ = 79887552287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79887552749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39943776399 + 39943776400.

It is an arithmetic number, because the mean of its divisors is an integer number (39943776400).

Almost surely, 2^79887552799 is an apocalyptic number.

79887552799 is a deficient number, since it is larger than the sum of its proper divisors (1).

79887552799 is an equidigital number, since it uses as much as digits as its factorization.

79887552799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800150400, while the sum is 76.

The spelling of 79887552799 in words is "seventy-nine billion, eight hundred eighty-seven million, five hundred fifty-two thousand, seven hundred ninety-nine".