27431715680 has 24 divisors (see below), whose sum is σ = 64807428672. Its totient is φ = 10972686208.

The previous prime is 27431715631. The next prime is 27431715691. The reversal of 27431715680 is 8651713472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85723952 + ... + 85724271.

It is an arithmetic number, because the mean of its divisors is an integer number (2700309528).

Almost surely, 2^27431715680 is an apocalyptic number.

27431715680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27431715680 is an abundant number, since it is smaller than the sum of its proper divisors (37375712992).

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

27431715680 is a wasteful number, since it uses less digits than its factorization.

27431715680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171448238 (or 171448230 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 27431715680 in words is "twenty-seven billion, four hundred thirty-one million, seven hundred fifteen thousand, six hundred eighty".