5043257861 has 2 divisors, whose sum is σ = 5043257862. Its totient is φ = 5043257860.

The previous prime is 5043257831. The next prime is 5043257929. The reversal of 5043257861 is 1687523405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4004484961 + 1038772900 = 63281^2 + 32230^2 .

It is a cyclic number.

It is not a de Polignac number, because 5043257861 - 2¹⁴ = 5043241477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5043257831) 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 as a sum of consecutive naturals, namely, 2521628930 + 2521628931.

It is an arithmetic number, because the mean of its divisors is an integer number (2521628931).

Almost surely, 2^5043257861 is an apocalyptic number.

It is an amenable number.

5043257861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5043257861 is an equidigital number, since it uses as much as digits as its factorization.

5043257861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 5043257861 is about 71015.8986495278. The cubic root of 5043257861 is about 1714.8931201827.

The spelling of 5043257861 in words is "five billion, forty-three million, two hundred fifty-seven thousand, eight hundred sixty-one".