118639340280 has 64 divisors (see below), whose sum is σ = 395464471200. Its totient is φ = 31637157120.

The previous prime is 118639340263. The next prime is 118639340299. The reversal of 118639340280 is 82043936811.

118639340280 is a `hidden beast` number, since 1 + 1 + 8 + 639 + 3 + 4 + 0 + 2 + 8 + 0 = 666.

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

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 54924541 + ... + 54926700.

Almost surely, 2^118639340280 is an apocalyptic number.

118639340280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118639340280 is an abundant number, since it is smaller than the sum of its proper divisors (276825130920).

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

118639340280 is a wasteful number, since it uses less digits than its factorization.

118639340280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109851261 (or 109851251 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 118639340280 in words is "one hundred eighteen billion, six hundred thirty-nine million, three hundred forty thousand, two hundred eighty".