27103977860 has 96 divisors (see below), whose sum is σ = 60837460992. Its totient is φ = 10119352320.

The previous prime is 27103977851. The next prime is 27103977913. The reversal of 27103977860 is 6877930172.

It is a junction number, because it is equal to n+sod(n) for n = 27103977799 and 27103977808.

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, 8062580 + ... + 8065940.

It is an arithmetic number, because the mean of its divisors is an integer number (633723552).

Almost surely, 2^27103977860 is an apocalyptic number.

27103977860 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 27103977860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30418730496).

27103977860 is an abundant number, since it is smaller than the sum of its proper divisors (33733483132).

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

27103977860 is a wasteful number, since it uses less digits than its factorization.

27103977860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813 (or 3811 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 50.

The spelling of 27103977860 in words is "twenty-seven billion, one hundred three million, nine hundred seventy-seven thousand, eight hundred sixty".