172893109069 has 2 divisors, whose sum is σ = 172893109070. Its totient is φ = 172893109068.

The previous prime is 172893109013. The next prime is 172893109093. The reversal of 172893109069 is 960901398271.

172893109069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98336806569 + 74556302500 = 313587^2 + 273050^2 .

It is a cyclic number.

It is not a de Polignac number, because 172893109069 - 2¹⁷ = 172892977997 is a prime.

It is a super-2 number, since 2×172893109069² (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 (172893109969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86446554534 + 86446554535.

It is an arithmetic number, because the mean of its divisors is an integer number (86446554535).

Almost surely, 2^172893109069 is an apocalyptic number.

It is an amenable number.

172893109069 is a deficient number, since it is larger than the sum of its proper divisors (1).

172893109069 is an equidigital number, since it uses as much as digits as its factorization.

172893109069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 172893109069 in words is "one hundred seventy-two billion, eight hundred ninety-three million, one hundred nine thousand, sixty-nine".