115041987997 has 2 divisors, whose sum is σ = 115041987998. Its totient is φ = 115041987996.

The previous prime is 115041987989. The next prime is 115041988037. The reversal of 115041987997 is 799789140511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82661425081 + 32380562916 = 287509^2 + 179946^2 .

It is a cyclic number.

It is not a de Polignac number, because 115041987997 - 2³ = 115041987989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115041982997) 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 as a sum of consecutive naturals, namely, 57520993998 + 57520993999.

It is an arithmetic number, because the mean of its divisors is an integer number (57520993999).

Almost surely, 2^115041987997 is an apocalyptic number.

It is an amenable number.

115041987997 is a deficient number, since it is larger than the sum of its proper divisors (1).

115041987997 is an equidigital number, since it uses as much as digits as its factorization.

115041987997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 61.

The spelling of 115041987997 in words is "one hundred fifteen billion, forty-one million, nine hundred eighty-seven thousand, nine hundred ninety-seven".