27731516272 has 20 divisors (see below), whose sum is σ = 56557698280. Its totient is φ = 13135981248.

The previous prime is 27731516261. The next prime is 27731516287. The reversal of 27731516272 is 27261513772.

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, 45610743 + ... + 45611350.

It is an arithmetic number, because the mean of its divisors is an integer number (2827884914).

Almost surely, 2^27731516272 is an apocalyptic number.

It is an amenable number.

27731516272 is an abundant number, since it is smaller than the sum of its proper divisors (28826182008).

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

27731516272 is a wasteful number, since it uses less digits than its factorization.

27731516272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91222120 (or 91222114 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The spelling of 27731516272 in words is "twenty-seven billion, seven hundred thirty-one million, five hundred sixteen thousand, two hundred seventy-two".