279490806628 has 48 divisors (see below), whose sum is σ = 571766900544. Its totient is φ = 118127651840.

The previous prime is 279490806599. The next prime is 279490806677. The reversal of 279490806628 is 826608094972.

It is a super-2 number, since 2×279490806628² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188825 + ... + 2312992.

It is an arithmetic number, because the mean of its divisors is an integer number (11911810428).

Almost surely, 2^279490806628 is an apocalyptic number.

It is an amenable number.

279490806628 is an abundant number, since it is smaller than the sum of its proper divisors (292276093916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

279490806628 is a wasteful number, since it uses less digits than its factorization.

279490806628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501932 (or 4501930 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 279490806628 in words is "two hundred seventy-nine billion, four hundred ninety million, eight hundred six thousand, six hundred twenty-eight".