231717461853 has 32 divisors (see below), whose sum is σ = 326908341760. Its totient is φ = 145587637440.

The previous prime is 231717461839. The next prime is 231717461863. The reversal of 231717461853 is 358164717132.

It is not a de Polignac number, because 231717461853 - 2⁵ = 231717461821 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 (231717461863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48141675 + ... + 48146487.

It is an arithmetic number, because the mean of its divisors is an integer number (10215885680).

Almost surely, 2^231717461853 is an apocalyptic number.

It is an amenable number.

231717461853 is a deficient number, since it is larger than the sum of its proper divisors (95190879907).

231717461853 is a wasteful number, since it uses less digits than its factorization.

231717461853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049.

The product of its digits is 846720, while the sum is 48.

The spelling of 231717461853 in words is "two hundred thirty-one billion, seven hundred seventeen million, four hundred sixty-one thousand, eight hundred fifty-three".