115457226991 has 2 divisors, whose sum is σ = 115457226992. Its totient is φ = 115457226990.

The previous prime is 115457226949. The next prime is 115457227001. The reversal of 115457226991 is 199622754511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115457226991 - 2¹⁹ = 115456702703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115457326991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57728613495 + 57728613496.

It is an arithmetic number, because the mean of its divisors is an integer number (57728613496).

Almost surely, 2^115457226991 is an apocalyptic number.

115457226991 is a deficient number, since it is larger than the sum of its proper divisors (1).

115457226991 is an equidigital number, since it uses as much as digits as its factorization.

115457226991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 52.

The spelling of 115457226991 in words is "one hundred fifteen billion, four hundred fifty-seven million, two hundred twenty-six thousand, nine hundred ninety-one".