279225655783 has 2 divisors, whose sum is σ = 279225655784. Its totient is φ = 279225655782.

The previous prime is 279225655777. The next prime is 279225655823. The reversal of 279225655783 is 387556522972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 279225655783 - 2²¹ = 279223558631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (279225655183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139612827891 + 139612827892.

It is an arithmetic number, because the mean of its divisors is an integer number (139612827892).

Almost surely, 2^279225655783 is an apocalyptic number.

279225655783 is a deficient number, since it is larger than the sum of its proper divisors (1).

279225655783 is an equidigital number, since it uses as much as digits as its factorization.

279225655783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504000, while the sum is 61.

The spelling of 279225655783 in words is "two hundred seventy-nine billion, two hundred twenty-five million, six hundred fifty-five thousand, seven hundred eighty-three".