172744112827 has 32 divisors (see below), whose sum is σ = 206831439360. Its totient is φ = 142209803520.

The previous prime is 172744112729. The next prime is 172744112831. The reversal of 172744112827 is 728211447271.

It is a cyclic number.

It is not a de Polignac number, because 172744112827 - 2¹⁵ = 172744080059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172744112857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1521199 + ... + 1630807.

It is an arithmetic number, because the mean of its divisors is an integer number (6463482480).

Almost surely, 2^172744112827 is an apocalyptic number.

172744112827 is a deficient number, since it is larger than the sum of its proper divisors (34087326533).

172744112827 is a wasteful number, since it uses less digits than its factorization.

172744112827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109843.

The product of its digits is 351232, while the sum is 46.

The spelling of 172744112827 in words is "one hundred seventy-two billion, seven hundred forty-four million, one hundred twelve thousand, eight hundred twenty-seven".