115506963731849 has 2 divisors, whose sum is σ = 115506963731850. Its totient is φ = 115506963731848.

The previous prime is 115506963731843. The next prime is 115506963731909. The reversal of 115506963731849 is 948137369605511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99268941024400 + 16238022707449 = 9963380^2 + 4029643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115506963731849 is a prime.

It is not a weakly prime, because it can be changed into another prime (115506963731843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57753481865924 + 57753481865925.

It is an arithmetic number, because the mean of its divisors is an integer number (57753481865925).

Almost surely, 2^{115506963731849} is an apocalyptic number.

It is an amenable number.

115506963731849 is a deficient number, since it is larger than the sum of its proper divisors (1).

115506963731849 is an equidigital number, since it uses as much as digits as its factorization.

115506963731849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 115506963731849 in words is "one hundred fifteen trillion, five hundred six billion, nine hundred sixty-three million, seven hundred thirty-one thousand, eight hundred forty-nine".