5168505393 has 12 divisors (see below), whose sum is σ = 7904773188. Its totient is φ = 3242983680.

The previous prime is 5168505389. The next prime is 5168505437. The reversal of 5168505393 is 3935058615.

5168505393 is a `hidden beast` number, since 5 + 1 + 68 + 50 + 539 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1424534049 + 3743971344 = 37743^2 + 61188^2 .

It is not a de Polignac number, because 5168505393 - 2² = 5168505389 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5168505313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16890388 + ... + 16890693.

It is an arithmetic number, because the mean of its divisors is an integer number (658731099).

Almost surely, 2^5168505393 is an apocalyptic number.

It is an amenable number.

5168505393 is a deficient number, since it is larger than the sum of its proper divisors (2736267795).

5168505393 is a wasteful number, since it uses less digits than its factorization.

5168505393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33781104 (or 33781101 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 5168505393 is about 71892.3180388559. The cubic root of 5168505393 is about 1728.9734510392.

The spelling of 5168505393 in words is "five billion, one hundred sixty-eight million, five hundred five thousand, three hundred ninety-three".