172009341604 has 6 divisors (see below), whose sum is σ = 301016347814. Its totient is φ = 86004670800.

The previous prime is 172009341601. The next prime is 172009341611. The reversal of 172009341604 is 406143900271.

It can be written as a sum of positive squares in only one way, i.e., 141261719104 + 30747622500 = 375848^2 + 175350^2 .

It is not an unprimeable number, because it can be changed into a prime (172009341601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21501167697 + ... + 21501167704.

Almost surely, 2^172009341604 is an apocalyptic number.

It is an amenable number.

172009341604 is a deficient number, since it is larger than the sum of its proper divisors (129007006210).

172009341604 is a wasteful number, since it uses less digits than its factorization.

172009341604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43002335405 (or 43002335403 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 172009341604 in words is "one hundred seventy-two billion, nine million, three hundred forty-one thousand, six hundred four".