115986204290849 has 2 divisors, whose sum is σ = 115986204290850. Its totient is φ = 115986204290848.

The previous prime is 115986204290809. The next prime is 115986204290863. The reversal of 115986204290849 is 948092402689511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79392234293824 + 36593969997025 = 8910232^2 + 6049295^2 .

It is a cyclic number.

It is not a de Polignac number, because 115986204290849 - 2²⁸ = 115985935855393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (115986204290809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57993102145424 + 57993102145425.

It is an arithmetic number, because the mean of its divisors is an integer number (57993102145425).

Almost surely, 2^{115986204290849} is an apocalyptic number.

It is an amenable number.

115986204290849 is a deficient number, since it is larger than the sum of its proper divisors (1).

115986204290849 is an equidigital number, since it uses as much as digits as its factorization.

115986204290849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 68.

The spelling of 115986204290849 in words is "one hundred fifteen trillion, nine hundred eighty-six billion, two hundred four million, two hundred ninety thousand, eight hundred forty-nine".