118985735988 has 144 divisors (see below), whose sum is σ = 362375430144. Its totient is φ = 32199197760.

The previous prime is 118985735959. The next prime is 118985736047. The reversal of 118985735988 is 889537589811.

118985735988 is a `hidden beast` number, since 118 + 9 + 85 + 7 + 359 + 88 = 666.

It is a super-2 number, since 2×118985735988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 205131 + ... + 529197.

Almost surely, 2^118985735988 is an apocalyptic number.

118985735988 is a gapful number since it is divisible by the number (18) 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 118985735988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181187715072).

118985735988 is an abundant number, since it is smaller than the sum of its proper divisors (243389694156).

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

118985735988 is a wasteful number, since it uses less digits than its factorization.

118985735988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324162 (or 324157 counting only the distinct ones).

The product of its digits is 174182400, while the sum is 72.

The spelling of 118985735988 in words is "one hundred eighteen billion, nine hundred eighty-five million, seven hundred thirty-five thousand, nine hundred eighty-eight".