115492691689 has 2 divisors, whose sum is σ = 115492691690. Its totient is φ = 115492691688.

The previous prime is 115492691687. The next prime is 115492691729. The reversal of 115492691689 is 986196294511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115248707289 + 243984400 = 339483^2 + 15620^2 .

It is a cyclic number.

It is not a de Polignac number, because 115492691689 - 2¹ = 115492691687 is a prime.

Together with 115492691687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115492691683) 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, 57746345844 + 57746345845.

It is an arithmetic number, because the mean of its divisors is an integer number (57746345845).

Almost surely, 2^115492691689 is an apocalyptic number.

It is an amenable number.

115492691689 is a deficient number, since it is larger than the sum of its proper divisors (1).

115492691689 is an equidigital number, since it uses as much as digits as its factorization.

115492691689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 61.

The spelling of 115492691689 in words is "one hundred fifteen billion, four hundred ninety-two million, six hundred ninety-one thousand, six hundred eighty-nine".