27985927372 has 24 divisors (see below), whose sum is σ = 52835134352. Its totient is φ = 12893947200.

The previous prime is 27985927367. The next prime is 27985927379. The reversal of 27985927372 is 27372958972.

It is a self number, because there is not a number n which added to its sum of digits gives 27985927372.

It is not an unprimeable number, because it can be changed into a prime (27985927379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441579 + ... + 500962.

Almost surely, 2^27985927372 is an apocalyptic number.

It is an amenable number.

27985927372 is a deficient number, since it is larger than the sum of its proper divisors (24849206980).

27985927372 is a wasteful number, since it uses less digits than its factorization.

27985927372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943129 (or 943127 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 61.

The spelling of 27985927372 in words is "twenty-seven billion, nine hundred eighty-five million, nine hundred twenty-seven thousand, three hundred seventy-two".