27447296172 has 12 divisors (see below), whose sum is σ = 64043691096. Its totient is φ = 9149098720.

The previous prime is 27447296171. The next prime is 27447296197. The reversal of 27447296172 is 27169274472.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (27447296171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143637329 + ... + 1143637352.

It is an arithmetic number, because the mean of its divisors is an integer number (5336974258).

Almost surely, 2^27447296172 is an apocalyptic number.

It is an amenable number.

27447296172 is an abundant number, since it is smaller than the sum of its proper divisors (36596394924).

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

27447296172 is a wasteful number, since it uses less digits than its factorization.

27447296172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287274688 (or 2287274686 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 51.

The spelling of 27447296172 in words is "twenty-seven billion, four hundred forty-seven million, two hundred ninety-six thousand, one hundred seventy-two".