27128628120 has 128 divisors (see below), whose sum is σ = 89245463040. Its totient is φ = 6542499840.

The previous prime is 27128628119. The next prime is 27128628161. The reversal of 27128628120 is 2182682172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201517 + ... + 308003.

It is an arithmetic number, because the mean of its divisors is an integer number (697230180).

Almost surely, 2^27128628120 is an apocalyptic number.

27128628120 is a gapful number since it is divisible by the number (20) 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 27128628120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44622731520).

27128628120 is an abundant number, since it is smaller than the sum of its proper divisors (62116834920).

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

27128628120 is a wasteful number, since it uses less digits than its factorization.

27128628120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106705 (or 106701 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 27128628120 in words is "twenty-seven billion, one hundred twenty-eight million, six hundred twenty-eight thousand, one hundred twenty".