251315212082 has 16 divisors (see below), whose sum is σ = 412582639392. Its totient is φ = 113862085920.

The previous prime is 251315212067. The next prime is 251315212091. The reversal of 251315212082 is 280212513152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18598163 + ... + 18611670.

It is an arithmetic number, because the mean of its divisors is an integer number (25786414962).

Almost surely, 2^251315212082 is an apocalyptic number.

251315212082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

251315212082 is a deficient number, since it is larger than the sum of its proper divisors (161267427310).

251315212082 is a wasteful number, since it uses less digits than its factorization.

251315212082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37210153.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 251315212082 in words is "two hundred fifty-one billion, three hundred fifteen million, two hundred twelve thousand, eighty-two".