27818042120 has 64 divisors (see below), whose sum is σ = 71874388800. Its totient is φ = 9583246080.

The previous prime is 27818042111. The next prime is 27818042141. The reversal of 27818042120 is 2124081872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655399 + ... + 1672118.

It is an arithmetic number, because the mean of its divisors is an integer number (1123037325).

Almost surely, 2^27818042120 is an apocalyptic number.

27818042120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27818042120 is an abundant number, since it is smaller than the sum of its proper divisors (44056346680).

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

27818042120 is a wasteful number, since it uses less digits than its factorization.

27818042120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327558 (or 3327554 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The spelling of 27818042120 in words is "twenty-seven billion, eight hundred eighteen million, forty-two thousand, one hundred twenty".