172432206724 has 12 divisors (see below), whose sum is σ = 301771218700. Its totient is φ = 86211858528.

The previous prime is 172432206673. The next prime is 172432206731. The reversal of 172432206724 is 427602234271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115306426624 + 57125780100 = 339568^2 + 239010^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 968919 + ... + 1132990.

Almost surely, 2^172432206724 is an apocalyptic number.

It is an amenable number.

172432206724 is a deficient number, since it is larger than the sum of its proper divisors (129339011976).

172432206724 is a wasteful number, since it uses less digits than its factorization.

172432206724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122422 (or 2122420 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 172432206724 in words is "one hundred seventy-two billion, four hundred thirty-two million, two hundred six thousand, seven hundred twenty-four".