253697678805 has 32 divisors (see below), whose sum is σ = 408058358400. Its totient is φ = 134593125120.

The previous prime is 253697678797. The next prime is 253697678863. The reversal of 253697678805 is 508876796352.

It is not a de Polignac number, because 253697678805 - 2³ = 253697678797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2324346 + ... + 2431044.

It is an arithmetic number, because the mean of its divisors is an integer number (12751823700).

Almost surely, 2^253697678805 is an apocalyptic number.

It is an amenable number.

253697678805 is a deficient number, since it is larger than the sum of its proper divisors (154360679595).

253697678805 is a wasteful number, since it uses less digits than its factorization.

253697678805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107541.

The product of its (nonzero) digits is 152409600, while the sum is 66.

The spelling of 253697678805 in words is "two hundred fifty-three billion, six hundred ninety-seven million, six hundred seventy-eight thousand, eight hundred five".