118427981623290 has 48 divisors (see below), whose sum is σ = 307913510853000. Its totient is φ = 31580717291136.

The previous prime is 118427981623253. The next prime is 118427981623307. The reversal of 118427981623290 is 92326189724811.

118427981623290 is a `hidden beast` number, since 1 + 1 + 8 + 427 + 98 + 1 + 6 + 2 + 32 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 97979886513441 + 20448095109849 = 9898479^2 + 4521957^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41427036 + ... + 44193384.

Almost surely, 2^{118427981623290} is an apocalyptic number.

118427981623290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118427981623290 is an abundant number, since it is smaller than the sum of its proper divisors (189485529229710).

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

118427981623290 is a wasteful number, since it uses less digits than its factorization.

118427981623290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242031 (or 3242028 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 118427981623290 in words is "one hundred eighteen trillion, four hundred twenty-seven billion, nine hundred eighty-one million, six hundred twenty-three thousand, two hundred ninety".