5091899173 has 2 divisors, whose sum is σ = 5091899174. Its totient is φ = 5091899172.

The previous prime is 5091899171. The next prime is 5091899191. The reversal of 5091899173 is 3719981905.

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., 2712118084 + 2379781089 = 52078^2 + 48783^2 .

It is a cyclic number.

It is not a de Polignac number, because 5091899173 - 2¹ = 5091899171 is a prime.

Together with 5091899171, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5091899173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5091899171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2545949586 + 2545949587.

It is an arithmetic number, because the mean of its divisors is an integer number (2545949587).

Almost surely, 2^5091899173 is an apocalyptic number.

It is an amenable number.

5091899173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5091899173 is an equidigital number, since it uses as much as digits as its factorization.

5091899173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 52.

The square root of 5091899173 is about 71357.5446116246. The cubic root of 5091899173 is about 1720.3887679214.

The spelling of 5091899173 in words is "five billion, ninety-one million, eight hundred ninety-nine thousand, one hundred seventy-three".