172117703432 has 32 divisors (see below), whose sum is σ = 323431579800. Its totient is φ = 85869464064.

The previous prime is 172117703419. The next prime is 172117703441. The reversal of 172117703432 is 234307711271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171434090116 + 683613316 = 414046^2 + 26146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8395178 + ... + 8415654.

Almost surely, 2^172117703432 is an apocalyptic number.

It is an amenable number.

172117703432 is a deficient number, since it is larger than the sum of its proper divisors (151313876368).

172117703432 is a wasteful number, since it uses less digits than its factorization.

172117703432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22745 (or 22741 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The spelling of 172117703432 in words is "one hundred seventy-two billion, one hundred seventeen million, seven hundred three thousand, four hundred thirty-two".