118251649591 has 2 divisors, whose sum is σ = 118251649592. Its totient is φ = 118251649590.

The previous prime is 118251649583. The next prime is 118251649597. The reversal of 118251649591 is 195946152811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118251649591 - 2³ = 118251649583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118251649597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59125824795 + 59125824796.

It is an arithmetic number, because the mean of its divisors is an integer number (59125824796).

Almost surely, 2^118251649591 is an apocalyptic number.

118251649591 is a deficient number, since it is larger than the sum of its proper divisors (1).

118251649591 is an equidigital number, since it uses as much as digits as its factorization.

118251649591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 52.

The spelling of 118251649591 in words is "one hundred eighteen billion, two hundred fifty-one million, six hundred forty-nine thousand, five hundred ninety-one".