5317729981 has 2 divisors, whose sum is σ = 5317729982. Its totient is φ = 5317729980.

The previous prime is 5317729951. The next prime is 5317730017. The reversal of 5317729981 is 1899277135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5222374756 + 95355225 = 72266^2 + 9765^2 .

It is a cyclic number.

It is not a de Polignac number, because 5317729981 - 2¹³ = 5317721789 is a prime.

It is a super-2 number, since 2×5317729981² = 56556504301652520722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5317729951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2658864990 + 2658864991.

It is an arithmetic number, because the mean of its divisors is an integer number (2658864991).

Almost surely, 2^5317729981 is an apocalyptic number.

It is an amenable number.

5317729981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5317729981 is an equidigital number, since it uses as much as digits as its factorization.

5317729981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The square root of 5317729981 is about 72922.7672335602. The cubic root of 5317729981 is about 1745.4554171850.

The spelling of 5317729981 in words is "five billion, three hundred seventeen million, seven hundred twenty-nine thousand, nine hundred eighty-one".