115775754491 has 2 divisors, whose sum is σ = 115775754492. Its totient is φ = 115775754490.

The previous prime is 115775754439. The next prime is 115775754503. The reversal of 115775754491 is 194457577511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115775754491 - 2⁶ = 115775754427 is a prime.

It is not a weakly prime, because it can be changed into another prime (115775754401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57887877245 + 57887877246.

It is an arithmetic number, because the mean of its divisors is an integer number (57887877246).

Almost surely, 2^115775754491 is an apocalyptic number.

115775754491 is a deficient number, since it is larger than the sum of its proper divisors (1).

115775754491 is an equidigital number, since it uses as much as digits as its factorization.

115775754491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6174000, while the sum is 56.

The spelling of 115775754491 in words is "one hundred fifteen billion, seven hundred seventy-five million, seven hundred fifty-four thousand, four hundred ninety-one".