172189200744 has 96 divisors (see below), whose sum is σ = 515180764800. Its totient is φ = 51518039040.

The previous prime is 172189200713. The next prime is 172189200779. The reversal of 172189200744 is 447002981271.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 172189200744.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1313449 + ... + 1438584.

It is an arithmetic number, because the mean of its divisors is an integer number (5366466300).

Almost surely, 2^172189200744 is an apocalyptic number.

It is an amenable number.

172189200744 is an abundant number, since it is smaller than the sum of its proper divisors (342991564056).

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

172189200744 is a wasteful number, since it uses less digits than its factorization.

172189200744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752135 (or 2752128 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 172189200744 in words is "one hundred seventy-two billion, one hundred eighty-nine million, two hundred thousand, seven hundred forty-four".