115813618597 has 2 divisors, whose sum is σ = 115813618598. Its totient is φ = 115813618596.

The previous prime is 115813618579. The next prime is 115813618663. The reversal of 115813618597 is 795816318511.

It is a Cunningham number, because it is equal to 340314²+1.

Together with previous prime (115813618579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115813618596 + 1 = 340314^2 + 1^2 .

It is an emirp because it is prime and its reverse (795816318511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115813618597 - 2²⁷ = 115679400869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115813618567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57906809298 + 57906809299.

It is an arithmetic number, because the mean of its divisors is an integer number (57906809299).

Almost surely, 2^115813618597 is an apocalyptic number.

It is an amenable number.

115813618597 is a deficient number, since it is larger than the sum of its proper divisors (1).

115813618597 is an equidigital number, since it uses as much as digits as its factorization.

115813618597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 55.

The spelling of 115813618597 in words is "one hundred fifteen billion, eight hundred thirteen million, six hundred eighteen thousand, five hundred ninety-seven".