115538992589 has 2 divisors, whose sum is σ = 115538992590. Its totient is φ = 115538992588.

The previous prime is 115538992573. The next prime is 115538992619. The reversal of 115538992589 is 985299835511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112044172900 + 3494819689 = 334730^2 + 59117^2 .

It is a cyclic number.

It is not a de Polignac number, because 115538992589 - 2⁴ = 115538992573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115538992529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57769496294 + 57769496295.

It is an arithmetic number, because the mean of its divisors is an integer number (57769496295).

Almost surely, 2^115538992589 is an apocalyptic number.

It is an amenable number.

115538992589 is a deficient number, since it is larger than the sum of its proper divisors (1).

115538992589 is an equidigital number, since it uses as much as digits as its factorization.

115538992589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992000, while the sum is 65.

The spelling of 115538992589 in words is "one hundred fifteen billion, five hundred thirty-eight million, nine hundred ninety-two thousand, five hundred eighty-nine".