27945471792 has 80 divisors (see below), whose sum is σ = 85167183872. Its totient is φ = 7726855680.

The previous prime is 27945471781. The next prime is 27945471817. The reversal of 27945471792 is 29717454972.

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, 1331053 + ... + 1351884.

Almost surely, 2^27945471792 is an apocalyptic number.

It is an amenable number.

27945471792 is an abundant number, since it is smaller than the sum of its proper divisors (57221712080).

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

27945471792 is a wasteful number, since it uses less digits than its factorization.

27945471792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682986 (or 2682980 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 57.

The spelling of 27945471792 in words is "twenty-seven billion, nine hundred forty-five million, four hundred seventy-one thousand, seven hundred ninety-two".