5195378173 has 2 divisors, whose sum is σ = 5195378174. Its totient is φ = 5195378172.

The previous prime is 5195378171. The next prime is 5195378191. The reversal of 5195378173 is 3718735915.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4629033369 + 566344804 = 68037^2 + 23798^2 .

It is a cyclic number.

It is not a de Polignac number, because 5195378173 - 2¹ = 5195378171 is a prime.

Together with 5195378171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5195378171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2597689086 + 2597689087.

It is an arithmetic number, because the mean of its divisors is an integer number (2597689087).

Almost surely, 2^5195378173 is an apocalyptic number.

It is an amenable number.

5195378173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5195378173 is an equidigital number, since it uses as much as digits as its factorization.

5195378173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 49.

The square root of 5195378173 is about 72078.9717809570. The cubic root of 5195378173 is about 1731.9647755505.

The spelling of 5195378173 in words is "five billion, one hundred ninety-five million, three hundred seventy-eight thousand, one hundred seventy-three".