27631156912 has 20 divisors (see below), whose sum is σ = 53539135776. Its totient is φ = 13814605760.

The previous prime is 27631156897. The next prime is 27631156919. The reversal of 27631156912 is 21965113672.

It is not an unprimeable number, because it can be changed into a prime (27631156919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210153 + ... + 315319.

Almost surely, 2^27631156912 is an apocalyptic number.

It is an amenable number.

27631156912 is a deficient number, since it is larger than the sum of its proper divisors (25907978864).

27631156912 is a wasteful number, since it uses less digits than its factorization.

27631156912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121596 (or 121590 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The spelling of 27631156912 in words is "twenty-seven billion, six hundred thirty-one million, one hundred fifty-six thousand, nine hundred twelve".