27838838860 has 48 divisors (see below), whose sum is σ = 68968488960. Its totient is φ = 9236848320.

The previous prime is 27838838857. The next prime is 27838838921. The reversal of 27838838860 is 6883883872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3202900 + ... + 3211579.

It is an arithmetic number, because the mean of its divisors is an integer number (1436843520).

Almost surely, 2^27838838860 is an apocalyptic number.

27838838860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27838838860 is an abundant number, since it is smaller than the sum of its proper divisors (41129650100).

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

27838838860 is a wasteful number, since it uses less digits than its factorization.

27838838860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414526 (or 6414524 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 61.

The spelling of 27838838860 in words is "twenty-seven billion, eight hundred thirty-eight million, eight hundred thirty-eight thousand, eight hundred sixty".