253914131518 has 16 divisors (see below), whose sum is σ = 390676238064. Its totient is φ = 123696901440.

The previous prime is 253914131509. The next prime is 253914131543. The reversal of 253914131518 is 815131419352.

It is a congruent number.

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, 1983180 + ... + 2107327.

It is an arithmetic number, because the mean of its divisors is an integer number (24417264879).

Almost surely, 2^253914131518 is an apocalyptic number.

253914131518 is a deficient number, since it is larger than the sum of its proper divisors (136762106546).

253914131518 is a wasteful number, since it uses less digits than its factorization.

253914131518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091307.

The product of its digits is 129600, while the sum is 43.

The spelling of 253914131518 in words is "two hundred fifty-three billion, nine hundred fourteen million, one hundred thirty-one thousand, five hundred eighteen".