251304874379 has 24 divisors (see below), whose sum is σ = 277219087200. Its totient is φ = 227647031040.

The previous prime is 251304874363. The next prime is 251304874433. The reversal of 251304874379 is 973478403152.

It is not a de Polignac number, because 251304874379 - 2⁴ = 251304874363 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 251304874379.

It is not an unprimeable number, because it can be changed into a prime (251304874349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4497887 + ... + 4553415.

It is an arithmetic number, because the mean of its divisors is an integer number (11550795300).

Almost surely, 2^251304874379 is an apocalyptic number.

251304874379 is a deficient number, since it is larger than the sum of its proper divisors (25914212821).

251304874379 is a wasteful number, since it uses less digits than its factorization.

251304874379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56055 (or 56042 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 251304874379 in words is "two hundred fifty-one billion, three hundred four million, eight hundred seventy-four thousand, three hundred seventy-nine".