118393187913 has 192 divisors, whose sum is σ = 235887235584. Its totient is φ = 55240704000.

The previous prime is 118393187911. The next prime is 118393187921. The reversal of 118393187913 is 319781393811.

It is not a de Polignac number, because 118393187913 - 2¹ = 118393187911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118393187913.

It is not an unprimeable number, because it can be changed into a prime (118393187911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 53305143 + ... + 53307363.

It is an arithmetic number, because the mean of its divisors is an integer number (1228579352).

Almost surely, 2^118393187913 is an apocalyptic number.

118393187913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

118393187913 is a deficient number, since it is larger than the sum of its proper divisors (117494047671).

118393187913 is a wasteful number, since it uses less digits than its factorization.

118393187913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2413 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The spelling of 118393187913 in words is "one hundred eighteen billion, three hundred ninety-three million, one hundred eighty-seven thousand, nine hundred thirteen".