172064601727 has 2 divisors, whose sum is σ = 172064601728. Its totient is φ = 172064601726.

The previous prime is 172064601671. The next prime is 172064601763. The reversal of 172064601727 is 727106460271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172064601727 - 2¹⁵ = 172064568959 is a prime.

It is a super-2 number, since 2×172064601727² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172064601827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86032300863 + 86032300864.

It is an arithmetic number, because the mean of its divisors is an integer number (86032300864).

Almost surely, 2^172064601727 is an apocalyptic number.

172064601727 is a deficient number, since it is larger than the sum of its proper divisors (1).

172064601727 is an equidigital number, since it uses as much as digits as its factorization.

172064601727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 172064601727 in words is "one hundred seventy-two billion, sixty-four million, six hundred one thousand, seven hundred twenty-seven".