172572924211 has 8 divisors (see below), whose sum is σ = 183035568240. Its totient is φ = 162144868608.

The previous prime is 172572924179. The next prime is 172572924241. The reversal of 172572924211 is 112429275271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172572924211 - 2⁵ = 172572924179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172572924241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8636826 + ... + 8656783.

It is an arithmetic number, because the mean of its divisors is an integer number (22879446030).

Almost surely, 2^172572924211 is an apocalyptic number.

172572924211 is a deficient number, since it is larger than the sum of its proper divisors (10462644029).

172572924211 is a wasteful number, since it uses less digits than its factorization.

172572924211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294213.

The product of its digits is 141120, while the sum is 43.

The spelling of 172572924211 in words is "one hundred seventy-two billion, five hundred seventy-two million, nine hundred twenty-four thousand, two hundred eleven".