27727647140 has 48 divisors (see below), whose sum is σ = 58603184640. Its totient is φ = 11019818880.

The previous prime is 27727647137. The next prime is 27727647149. The reversal of 27727647140 is 4174672772.

It is not an unprimeable number, because it can be changed into a prime (27727647149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197289 + ... + 2209871.

It is an arithmetic number, because the mean of its divisors is an integer number (1220899680).

Almost surely, 2^27727647140 is an apocalyptic number.

27727647140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27727647140 is an abundant number, since it is smaller than the sum of its proper divisors (30875537500).

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

27727647140 is a wasteful number, since it uses less digits than its factorization.

27727647140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13292 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 47.

The spelling of 27727647140 in words is "twenty-seven billion, seven hundred twenty-seven million, six hundred forty-seven thousand, one hundred forty".