118418642597 has 2 divisors, whose sum is σ = 118418642598. Its totient is φ = 118418642596.

The previous prime is 118418642593. The next prime is 118418642599. The reversal of 118418642597 is 795246814811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115328839201 + 3089803396 = 339601^2 + 55586^2 .

It is a cyclic number.

It is not a de Polignac number, because 118418642597 - 2² = 118418642593 is a prime.

Together with 118418642599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118418642593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59209321298 + 59209321299.

It is an arithmetic number, because the mean of its divisors is an integer number (59209321299).

Almost surely, 2^118418642597 is an apocalyptic number.

It is an amenable number.

118418642597 is a deficient number, since it is larger than the sum of its proper divisors (1).

118418642597 is an equidigital number, since it uses as much as digits as its factorization.

118418642597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 56.

The spelling of 118418642597 in words is "one hundred eighteen billion, four hundred eighteen million, six hundred forty-two thousand, five hundred ninety-seven".