172173995711 has 8 divisors (see below), whose sum is σ = 173360513664. Its totient is φ = 170990973720.

The previous prime is 172173995647. The next prime is 172173995713. The reversal of 172173995711 is 117599371271.

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 172173995711 - 2⁶ = 172173995647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172173995713) 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, 775115 + ... + 972188.

It is an arithmetic number, because the mean of its divisors is an integer number (21670064208).

Almost surely, 2^172173995711 is an apocalyptic number.

172173995711 is a deficient number, since it is larger than the sum of its proper divisors (1186517953).

172173995711 is a wasteful number, since it uses less digits than its factorization.

172173995711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747981.

The product of its digits is 833490, while the sum is 53.

The spelling of 172173995711 in words is "one hundred seventy-two billion, one hundred seventy-three million, nine hundred ninety-five thousand, seven hundred eleven".