172117703434 has 4 divisors (see below), whose sum is σ = 258176555154. Its totient is φ = 86058851716.

The previous prime is 172117703419. The next prime is 172117703441. The reversal of 172117703434 is 434307711271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 103449073225 + 68668630209 = 321635^2 + 262047^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43029425857 + ... + 43029425860.

Almost surely, 2^172117703434 is an apocalyptic number.

172117703434 is a deficient number, since it is larger than the sum of its proper divisors (86058851720).

172117703434 is an equidigital number, since it uses as much as digits as its factorization.

172117703434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86058851719.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 172117703434 in words is "one hundred seventy-two billion, one hundred seventeen million, seven hundred three thousand, four hundred thirty-four".