115623261613 has 4 divisors (see below), whose sum is σ = 120650359968. Its totient is φ = 110596163260.

The previous prime is 115623261587. The next prime is 115623261617. The reversal of 115623261613 is 316162326511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316162326511 = 10903 ⋅28997737.

It is a cyclic number.

It is not a de Polignac number, because 115623261613 - 2⁹ = 115623261101 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 (115623261617) 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, 2513549143 + ... + 2513549188.

It is an arithmetic number, because the mean of its divisors is an integer number (30162589992).

Almost surely, 2^115623261613 is an apocalyptic number.

It is an amenable number.

115623261613 is a deficient number, since it is larger than the sum of its proper divisors (5027098355).

115623261613 is an equidigital number, since it uses as much as digits as its factorization.

115623261613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027098354.

The product of its digits is 38880, while the sum is 37.

The spelling of 115623261613 in words is "one hundred fifteen billion, six hundred twenty-three million, two hundred sixty-one thousand, six hundred thirteen".