5188320857 has 2 divisors, whose sum is σ = 5188320858. Its totient is φ = 5188320856.

The previous prime is 5188320847. The next prime is 5188320881. The reversal of 5188320857 is 7580238815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4886569216 + 301751641 = 69904^2 + 17371^2 .

It is a cyclic number.

It is not a de Polignac number, because 5188320857 - 2⁸ = 5188320601 is a prime.

It is not a weakly prime, because it can be changed into another prime (5188320817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2594160428 + 2594160429.

It is an arithmetic number, because the mean of its divisors is an integer number (2594160429).

Almost surely, 2^5188320857 is an apocalyptic number.

It is an amenable number.

5188320857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5188320857 is an equidigital number, since it uses as much as digits as its factorization.

5188320857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 5188320857 is about 72029.9997015133. Note that the first 3 decimals coincide. The cubic root of 5188320857 is about 1731.1801960638.

The spelling of 5188320857 in words is "five billion, one hundred eighty-eight million, three hundred twenty thousand, eight hundred fifty-seven".