118638373519 has 8 divisors (see below), whose sum is σ = 123804306432. Its totient is φ = 113473085880.

The previous prime is 118638373453. The next prime is 118638373523. The reversal of 118638373519 is 915373836811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118638373519 is a prime.

It is a super-2 number, since 2×118638373519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118638373519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118638373559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235162 + ... + 540904.

It is an arithmetic number, because the mean of its divisors is an integer number (15475538304).

Almost surely, 2^118638373519 is an apocalyptic number.

118638373519 is a deficient number, since it is larger than the sum of its proper divisors (5165932913).

118638373519 is a wasteful number, since it uses less digits than its factorization.

118638373519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322637.

The product of its digits is 3265920, while the sum is 55.

The spelling of 118638373519 in words is "one hundred eighteen billion, six hundred thirty-eight million, three hundred seventy-three thousand, five hundred nineteen".