169209476325073 has 2 divisors, whose sum is σ = 169209476325074. Its totient is φ = 169209476325072.

The previous prime is 169209476325067. The next prime is 169209476325121. The reversal of 169209476325073 is 370523674902961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169209416834704 + 59490369 = 13008052^2 + 7713^2 .

It is a cyclic number.

It is not a de Polignac number, because 169209476325073 - 2²¹ = 169209474227921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169209476324996 and 169209476325014.

It is not a weakly prime, because it can be changed into another prime (169209476325173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84604738162536 + 84604738162537.

It is an arithmetic number, because the mean of its divisors is an integer number (84604738162537).

Almost surely, 2^{169209476325073} is an apocalyptic number.

It is an amenable number.

169209476325073 is a deficient number, since it is larger than the sum of its proper divisors (1).

169209476325073 is an equidigital number, since it uses as much as digits as its factorization.

169209476325073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 64.

The spelling of 169209476325073 in words is "one hundred sixty-nine trillion, two hundred nine billion, four hundred seventy-six million, three hundred twenty-five thousand, seventy-three".