27421327580 has 48 divisors (see below), whose sum is σ = 59587799040. Its totient is φ = 10587225600.

The previous prime is 27421327561. The next prime is 27421327601. The reversal of 27421327580 is 8572312472.

It is a congruent number.

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, 3964325 + ... + 3971235.

It is an arithmetic number, because the mean of its divisors is an integer number (1241412480).

Almost surely, 2^27421327580 is an apocalyptic number.

27421327580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27421327580 is an abundant number, since it is smaller than the sum of its proper divisors (32166471460).

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

27421327580 is a wasteful number, since it uses less digits than its factorization.

27421327580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790 (or 13788 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 27421327580 in words is "twenty-seven billion, four hundred twenty-one million, three hundred twenty-seven thousand, five hundred eighty".