27712678860 has 72 divisors (see below), whose sum is σ = 89006613696. Its totient is φ = 6955338240.

The previous prime is 27712678853. The next prime is 27712678897. The reversal of 27712678860 is 6887621772.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27712678797 and 27712678806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4525156 + ... + 4531275.

It is an arithmetic number, because the mean of its divisors is an integer number (1236202968).

Almost surely, 2^27712678860 is an apocalyptic number.

27712678860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27712678860 is an abundant number, since it is smaller than the sum of its proper divisors (61293934836).

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

27712678860 is a wasteful number, since it uses less digits than its factorization.

27712678860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056463 (or 9056458 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 27712678860 in words is "twenty-seven billion, seven hundred twelve million, six hundred seventy-eight thousand, eight hundred sixty".