173342878469 has 2 divisors, whose sum is σ = 173342878470. Its totient is φ = 173342878468.

The previous prime is 173342878463. The next prime is 173342878517. The reversal of 173342878469 is 964878243371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163159444900 + 10183433569 = 403930^2 + 100913^2 .

It is a cyclic number.

It is not a de Polignac number, because 173342878469 - 2⁸ = 173342878213 is a prime.

It is a super-2 number, since 2×173342878469² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173342878463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86671439234 + 86671439235.

It is an arithmetic number, because the mean of its divisors is an integer number (86671439235).

Almost surely, 2^173342878469 is an apocalyptic number.

It is an amenable number.

173342878469 is a deficient number, since it is larger than the sum of its proper divisors (1).

173342878469 is an equidigital number, since it uses as much as digits as its factorization.

173342878469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The spelling of 173342878469 in words is "one hundred seventy-three billion, three hundred forty-two million, eight hundred seventy-eight thousand, four hundred sixty-nine".