172893109093 has 2 divisors, whose sum is σ = 172893109094. Its totient is φ = 172893109092.

The previous prime is 172893109069. The next prime is 172893109111. The reversal of 172893109093 is 390901398271.

172893109093 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., 141618247684 + 31274861409 = 376322^2 + 176847^2 .

It is a cyclic number.

It is not a de Polignac number, because 172893109093 - 2¹⁷ = 172892978021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172893109093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172893109013) 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, 86446554546 + 86446554547.

It is an arithmetic number, because the mean of its divisors is an integer number (86446554547).

Almost surely, 2^172893109093 is an apocalyptic number.

It is an amenable number.

172893109093 is a deficient number, since it is larger than the sum of its proper divisors (1).

172893109093 is an equidigital number, since it uses as much as digits as its factorization.

172893109093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The spelling of 172893109093 in words is "one hundred seventy-two billion, eight hundred ninety-three million, one hundred nine thousand, ninety-three".