5172309473 has 2 divisors, whose sum is σ = 5172309474. Its totient is φ = 5172309472.

The previous prime is 5172309463. The next prime is 5172309497. The reversal of 5172309473 is 3749032715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5084830864 + 87478609 = 71308^2 + 9353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5172309473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5172309473.

It is not a weakly prime, because it can be changed into another prime (5172309433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2586154736 + 2586154737.

It is an arithmetic number, because the mean of its divisors is an integer number (2586154737).

Almost surely, 2^5172309473 is an apocalyptic number.

It is an amenable number.

5172309473 is a deficient number, since it is larger than the sum of its proper divisors (1).

5172309473 is an equidigital number, since it uses as much as digits as its factorization.

5172309473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 5172309473 is about 71918.7699630632. The cubic root of 5172309473 is about 1729.3975285280.

The spelling of 5172309473 in words is "five billion, one hundred seventy-two million, three hundred nine thousand, four hundred seventy-three".