5186706881 has 2 divisors, whose sum is σ = 5186706882. Its totient is φ = 5186706880.

The previous prime is 5186706871. The next prime is 5186706901. The reversal of 5186706881 is 1886076815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4541546881 + 645160000 = 67391^2 + 25400^2 .

It is a cyclic number.

It is not a de Polignac number, because 5186706881 - 2¹⁰ = 5186705857 is a prime.

It is a super-2 number, since 2×5186706881² = 53803856538825496322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5186706821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2593353440 + 2593353441.

It is an arithmetic number, because the mean of its divisors is an integer number (2593353441).

Almost surely, 2^5186706881 is an apocalyptic number.

It is an amenable number.

5186706881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5186706881 is an equidigital number, since it uses as much as digits as its factorization.

5186706881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 5186706881 is about 72018.7953314966. The cubic root of 5186706881 is about 1731.0006663636. Note that the first 3 decimals are identical.

The spelling of 5186706881 in words is "five billion, one hundred eighty-six million, seven hundred six thousand, eight hundred eighty-one".