115775442613 has 4 divisors (see below), whose sum is σ = 115776951660. Its totient is φ = 115773933568.

The previous prime is 115775442547. The next prime is 115775442623. The reversal of 115775442613 is 316244577511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316244577511 = 8543 ⋅37017977.

It can be written as a sum of positive squares in 2 ways, for example, as 97817566564 + 17957876049 = 312758^2 + 134007^2 .

It is a cyclic number.

It is not a de Polignac number, because 115775442613 - 2³³ = 107185508021 is a prime.

It is a super-2 number, since 2×115775442613² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115775442623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632908 + ... + 795061.

It is an arithmetic number, because the mean of its divisors is an integer number (28944237915).

Almost surely, 2^115775442613 is an apocalyptic number.

It is an amenable number.

115775442613 is a deficient number, since it is larger than the sum of its proper divisors (1509047).

115775442613 is an equidigital number, since it uses as much as digits as its factorization.

115775442613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509046.

The product of its digits is 705600, while the sum is 46.

The spelling of 115775442613 in words is "one hundred fifteen billion, seven hundred seventy-five million, four hundred forty-two thousand, six hundred thirteen".