115889146817 has 2 divisors, whose sum is σ = 115889146818. Its totient is φ = 115889146816.

The previous prime is 115889146799. The next prime is 115889146831. The reversal of 115889146817 is 718641988511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103300531216 + 12588615601 = 321404^2 + 112199^2 .

It is a cyclic number.

It is not a de Polignac number, because 115889146817 - 2⁸ = 115889146561 is a prime.

It is not a weakly prime, because it can be changed into another prime (115889146847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57944573408 + 57944573409.

It is an arithmetic number, because the mean of its divisors is an integer number (57944573409).

Almost surely, 2^115889146817 is an apocalyptic number.

It is an amenable number.

115889146817 is a deficient number, since it is larger than the sum of its proper divisors (1).

115889146817 is an equidigital number, since it uses as much as digits as its factorization.

115889146817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 59.

The spelling of 115889146817 in words is "one hundred fifteen billion, eight hundred eighty-nine million, one hundred forty-six thousand, eight hundred seventeen".