99842279279 has 2 divisors, whose sum is σ = 99842279280. Its totient is φ = 99842279278.

The previous prime is 99842279269. The next prime is 99842279287. The reversal of 99842279279 is 97297224899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99842279279 - 2²⁸ = 99573843823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99842279269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49921139639 + 49921139640.

It is an arithmetic number, because the mean of its divisors is an integer number (49921139640).

Almost surely, 2^99842279279 is an apocalyptic number.

99842279279 is a deficient number, since it is larger than the sum of its proper divisors (1).

99842279279 is an equidigital number, since it uses as much as digits as its factorization.

99842279279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 68.

It can be divided in two parts, 998422 and 79279, that added together give a palindrome (1077701).

The spelling of 99842279279 in words is "ninety-nine billion, eight hundred forty-two million, two hundred seventy-nine thousand, two hundred seventy-nine".