279456855199 has 2 divisors, whose sum is σ = 279456855200. Its totient is φ = 279456855198.

The previous prime is 279456855193. The next prime is 279456855211. The reversal of 279456855199 is 991558654972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 279456855199 - 2²⁷ = 279322637471 is a prime.

It is a super-2 number, since 2×279456855199² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279456855193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139728427599 + 139728427600.

It is an arithmetic number, because the mean of its divisors is an integer number (139728427600).

Almost surely, 2^279456855199 is an apocalyptic number.

279456855199 is a deficient number, since it is larger than the sum of its proper divisors (1).

279456855199 is an equidigital number, since it uses as much as digits as its factorization.

279456855199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944000, while the sum is 70.

The spelling of 279456855199 in words is "two hundred seventy-nine billion, four hundred fifty-six million, eight hundred fifty-five thousand, one hundred ninety-nine".