113652813251861 has 4 divisors (see below), whose sum is σ = 122395337348172. Its totient is φ = 104910289155552.

The previous prime is 113652813251843. The next prime is 113652813251899. The reversal of 113652813251861 is 168152318256311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49699764637636 + 63953048614225 = 7049806^2 + 7997065^2 .

It is a cyclic number.

It is not a de Polignac number, because 113652813251861 - 2²⁶ = 113652746142997 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 (113652813251821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4371262048136 + ... + 4371262048161.

It is an arithmetic number, because the mean of its divisors is an integer number (30598834337043).

Almost surely, 2^{113652813251861} is an apocalyptic number.

It is an amenable number.

113652813251861 is a deficient number, since it is larger than the sum of its proper divisors (8742524096311).

113652813251861 is an equidigital number, since it uses as much as digits as its factorization.

113652813251861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742524096310.

The product of its digits is 2073600, while the sum is 53.

The spelling of 113652813251861 in words is "one hundred thirteen trillion, six hundred fifty-two billion, eight hundred thirteen million, two hundred fifty-one thousand, eight hundred sixty-one".