5185381673 has 2 divisors, whose sum is σ = 5185381674. Its totient is φ = 5185381672.

The previous prime is 5185381589. The next prime is 5185381703. The reversal of 5185381673 is 3761835815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4980548329 + 204833344 = 70573^2 + 14312^2 .

It is a cyclic number.

It is not a de Polignac number, because 5185381673 - 2⁸ = 5185381417 is a prime.

It is not a weakly prime, because it can be changed into another prime (5185311673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592690836 + 2592690837.

It is an arithmetic number, because the mean of its divisors is an integer number (2592690837).

Almost surely, 2^5185381673 is an apocalyptic number.

It is an amenable number.

5185381673 is a deficient number, since it is larger than the sum of its proper divisors (1).

5185381673 is an equidigital number, since it uses as much as digits as its factorization.

5185381673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 5185381673 is about 72009.5943121470. The cubic root of 5185381673 is about 1730.8532297608.

The spelling of 5185381673 in words is "five billion, one hundred eighty-five million, three hundred eighty-one thousand, six hundred seventy-three".