118371507697 has 2 divisors, whose sum is σ = 118371507698. Its totient is φ = 118371507696.

The previous prime is 118371507673. The next prime is 118371507731. The reversal of 118371507697 is 796705173811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89307736336 + 29063771361 = 298844^2 + 170481^2 .

It is an emirp because it is prime and its reverse (796705173811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118371507697 - 2¹¹ = 118371505649 is a prime.

It is not a weakly prime, because it can be changed into another prime (118371507607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59185753848 + 59185753849.

It is an arithmetic number, because the mean of its divisors is an integer number (59185753849).

Almost surely, 2^118371507697 is an apocalyptic number.

It is an amenable number.

118371507697 is a deficient number, since it is larger than the sum of its proper divisors (1).

118371507697 is an equidigital number, since it uses as much as digits as its factorization.

118371507697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 55.

The spelling of 118371507697 in words is "one hundred eighteen billion, three hundred seventy-one million, five hundred seven thousand, six hundred ninety-seven".