251013427199 has 16 divisors (see below), whose sum is σ = 264689565696. Its totient is φ = 237688550400.

The previous prime is 251013427177. The next prime is 251013427201. The reversal of 251013427199 is 991724310152.

It is not a de Polignac number, because 251013427199 - 2²⁴ = 250996649983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251013427139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6509594 + ... + 6548040.

It is an arithmetic number, because the mean of its divisors is an integer number (16543097856).

Almost surely, 2^251013427199 is an apocalyptic number.

251013427199 is a deficient number, since it is larger than the sum of its proper divisors (13676138497).

251013427199 is a wasteful number, since it uses less digits than its factorization.

251013427199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43006.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 251013427199 in words is "two hundred fifty-one billion, thirteen million, four hundred twenty-seven thousand, one hundred ninety-nine".