17172005764 has 9 divisors (see below), whose sum is σ = 30051468741. Its totient is φ = 8585871840.

The previous prime is 17172005761. The next prime is 17172005791. The reversal of 17172005764 is 46750027171.

It is a happy number.

The square root of 17172005764 is 131042.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9872012164 + 7299993600 = 99358^2 + 85440^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17172005761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 229324 + ... + 294844.

Almost surely, 2^17172005764 is an apocalyptic number.

17172005764 is the 131042-nd square number.

It is an amenable number.

17172005764 is a deficient number, since it is larger than the sum of its proper divisors (12879462977).

17172005764 is an frugal number, since it uses more digits than its factorization.

17172005764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131046 (or 65523 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 17172005764 in words is "seventeen billion, one hundred seventy-two million, five thousand, seven hundred sixty-four".