279420916291 has 12 divisors (see below), whose sum is σ = 310298404696. Its totient is φ = 251400251520.

The previous prime is 279420916289. The next prime is 279420916337. The reversal of 279420916291 is 192619024972.

It is not a de Polignac number, because 279420916291 - 2¹ = 279420916289 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (279420916231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11891685 + ... + 11915158.

Almost surely, 2^279420916291 is an apocalyptic number.

279420916291 is a deficient number, since it is larger than the sum of its proper divisors (30877488405).

279420916291 is a wasteful number, since it uses less digits than its factorization.

279420916291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23806962 (or 23806951 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 279420916291 in words is "two hundred seventy-nine billion, four hundred twenty million, nine hundred sixteen thousand, two hundred ninety-one".