27693389712 has 80 divisors (see below), whose sum is σ = 73899381248. Its totient is φ = 8927262720.

The previous prime is 27693389707. The next prime is 27693389761. The reversal of 27693389712 is 21798339672.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513688 + ... + 2524680.

Almost surely, 2^27693389712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27693389712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36949690624).

27693389712 is an abundant number, since it is smaller than the sum of its proper divisors (46205991536).

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

27693389712 is a wasteful number, since it uses less digits than its factorization.

27693389712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12728 (or 12722 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 57.

The spelling of 27693389712 in words is "twenty-seven billion, six hundred ninety-three million, three hundred eighty-nine thousand, seven hundred twelve".