118457415647 has 2 divisors, whose sum is σ = 118457415648. Its totient is φ = 118457415646.

The previous prime is 118457415631. The next prime is 118457415697. The reversal of 118457415647 is 746514754811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118457415647 - 2⁴ = 118457415631 is a prime.

It is a super-2 number, since 2×118457415647² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118457415697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59228707823 + 59228707824.

It is an arithmetic number, because the mean of its divisors is an integer number (59228707824).

Almost surely, 2^118457415647 is an apocalyptic number.

118457415647 is a deficient number, since it is larger than the sum of its proper divisors (1).

118457415647 is an equidigital number, since it uses as much as digits as its factorization.

118457415647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3763200, while the sum is 53.

The spelling of 118457415647 in words is "one hundred eighteen billion, four hundred fifty-seven million, four hundred fifteen thousand, six hundred forty-seven".