27860365312 has 52 divisors (see below), whose sum is σ = 59999730280. Its totient is φ = 12858605568.

The previous prime is 27860365297. The next prime is 27860365367. The reversal of 27860365312 is 21356306872.

It is a tau number, because it is divible by the number of its divisors (52).

It is a congruent number.

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, 208362 + ... + 314857.

Almost surely, 2^27860365312 is an apocalyptic number.

It is an amenable number.

27860365312 is an abundant number, since it is smaller than the sum of its proper divisors (32139364968).

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

27860365312 is an equidigital number, since it uses as much as digits as its factorization.

27860365312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523256 (or 523234 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 27860365312 in words is "twenty-seven billion, eight hundred sixty million, three hundred sixty-five thousand, three hundred twelve".