118638000432 has 240 divisors, whose sum is σ = 406203779072. Its totient is φ = 32802900480.

The previous prime is 118638000427. The next prime is 118638000451. The reversal of 118638000432 is 234000836811.

118638000432 is a `hidden beast` number, since 1 + 18 + 638 + 0 + 0 + 0 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 773388 + ... + 914004.

Almost surely, 2^118638000432 is an apocalyptic number.

118638000432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118638000432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203101889536).

118638000432 is an abundant number, since it is smaller than the sum of its proper divisors (287565778640).

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

118638000432 is a wasteful number, since it uses less digits than its factorization.

118638000432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140678 (or 140660 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 118638000432 in words is "one hundred eighteen billion, six hundred thirty-eight million, four hundred thirty-two", and thus it is an aban number.