118731263850 has 144 divisors (see below), whose sum is σ = 323740216800. Its totient is φ = 31193631360.

The previous prime is 118731263843. The next prime is 118731263863. The reversal of 118731263850 is 58362137811.

It is a happy number.

118731263850 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 3 + 1 + 2 + 638 + 5 + 0 = 666.

It is a super-2 number, since 2×118731263850² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 118731263796 and 118731263805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8773189 + ... + 8786711.

It is an arithmetic number, because the mean of its divisors is an integer number (2248195950).

Almost surely, 2^118731263850 is an apocalyptic number.

118731263850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118731263850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161870108400).

118731263850 is an abundant number, since it is smaller than the sum of its proper divisors (205008952950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118731263850 is a wasteful number, since it uses less digits than its factorization.

118731263850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13821 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 118731263850 in words is "one hundred eighteen billion, seven hundred thirty-one million, two hundred sixty-three thousand, eight hundred fifty".