279668200054 has 4 divisors (see below), whose sum is σ = 419502300084. Its totient is φ = 139834100026.

The previous prime is 279668200033. The next prime is 279668200061. The reversal of 279668200054 is 450002866972.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 279668199980 and 279668200007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69917050012 + ... + 69917050015.

It is an arithmetic number, because the mean of its divisors is an integer number (104875575021).

Almost surely, 2^279668200054 is an apocalyptic number.

279668200054 is a deficient number, since it is larger than the sum of its proper divisors (139834100030).

279668200054 is a wasteful number, since it uses less digits than its factorization.

279668200054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139834100029.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 279668200054 in words is "two hundred seventy-nine billion, six hundred sixty-eight million, two hundred thousand, fifty-four".