27727347252 has 96 divisors (see below), whose sum is σ = 71278187904. Its totient is φ = 8319283200.

The previous prime is 27727347229. The next prime is 27727347253. The reversal of 27727347252 is 25274372772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27727347253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7828602 + ... + 7832142.

It is an arithmetic number, because the mean of its divisors is an integer number (742481124).

Almost surely, 2^27727347252 is an apocalyptic number.

27727347252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27727347252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35639093952).

27727347252 is an abundant number, since it is smaller than the sum of its proper divisors (43550840652).

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

27727347252 is a wasteful number, since it uses less digits than its factorization.

27727347252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129 (or 4127 counting only the distinct ones).

The product of its digits is 2304960, while the sum is 48.

The spelling of 27727347252 in words is "twenty-seven billion, seven hundred twenty-seven million, three hundred forty-seven thousand, two hundred fifty-two".