27866785160 has 16 divisors (see below), whose sum is σ = 62700266700. Its totient is φ = 11146714048.

The previous prime is 27866785139. The next prime is 27866785213. The reversal of 27866785160 is 6158766872.

It can be written as a sum of positive squares in 2 ways, for example, as 22633998916 + 5232786244 = 150446^2 + 72338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27866785096 and 27866785105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348334775 + ... + 348334854.

Almost surely, 2^27866785160 is an apocalyptic number.

27866785160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27866785160 is an abundant number, since it is smaller than the sum of its proper divisors (34833481540).

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

27866785160 is a wasteful number, since it uses less digits than its factorization.

27866785160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696669640 (or 696669636 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 27866785160 in words is "twenty-seven billion, eight hundred sixty-six million, seven hundred eighty-five thousand, one hundred sixty".