115031606491 has 2 divisors, whose sum is σ = 115031606492. Its totient is φ = 115031606490.

The previous prime is 115031606453. The next prime is 115031606533. The reversal of 115031606491 is 194606130511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115031606491 - 2²¹ = 115029509339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115031606491.

It is not a weakly prime, because it can be changed into another prime (115031600491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57515803245 + 57515803246.

It is an arithmetic number, because the mean of its divisors is an integer number (57515803246).

Almost surely, 2^115031606491 is an apocalyptic number.

115031606491 is a deficient number, since it is larger than the sum of its proper divisors (1).

115031606491 is an equidigital number, since it uses as much as digits as its factorization.

115031606491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 115031606491 in words is "one hundred fifteen billion, thirty-one million, six hundred six thousand, four hundred ninety-one".