172004097366889 has 2 divisors, whose sum is σ = 172004097366890. Its totient is φ = 172004097366888.

The previous prime is 172004097366863. The next prime is 172004097366901. The reversal of 172004097366889 is 988663790400271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149262834678489 + 22741262688400 = 12217317^2 + 4768780^2 .

It is an emirp because it is prime and its reverse (988663790400271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172004097366889 - 2¹³ = 172004097358697 is a prime.

It is not a weakly prime, because it can be changed into another prime (172004097366809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86002048683444 + 86002048683445.

It is an arithmetic number, because the mean of its divisors is an integer number (86002048683445).

Almost surely, 2^{172004097366889} is an apocalyptic number.

It is an amenable number.

172004097366889 is a deficient number, since it is larger than the sum of its proper divisors (1).

172004097366889 is an equidigital number, since it uses as much as digits as its factorization.

172004097366889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 172004097366889 in words is "one hundred seventy-two trillion, four billion, ninety-seven million, three hundred sixty-six thousand, eight hundred eighty-nine".