5317821863 has 2 divisors, whose sum is σ = 5317821864. Its totient is φ = 5317821862.

The previous prime is 5317821857. The next prime is 5317821953. The reversal of 5317821863 is 3681287135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5317821863 - 2¹² = 5317817767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5317821463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2658910931 + 2658910932.

It is an arithmetic number, because the mean of its divisors is an integer number (2658910932).

Almost surely, 2^5317821863 is an apocalyptic number.

5317821863 is a deficient number, since it is larger than the sum of its proper divisors (1).

5317821863 is an equidigital number, since it uses as much as digits as its factorization.

5317821863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 5317821863 is about 72923.3972261304. The cubic root of 5317821863 is about 1745.4654700341.

The spelling of 5317821863 in words is "five billion, three hundred seventeen million, eight hundred twenty-one thousand, eight hundred sixty-three".