5681417509 has 2 divisors, whose sum is σ = 5681417510. Its totient is φ = 5681417508.

The previous prime is 5681417447. The next prime is 5681417549. The reversal of 5681417509 is 9057141865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4179622500 + 1501795009 = 64650^2 + 38753^2 .

It is a cyclic number.

It is not a de Polignac number, because 5681417509 - 2¹¹ = 5681415461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5681417549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840708754 + 2840708755.

It is an arithmetic number, because the mean of its divisors is an integer number (2840708755).

Almost surely, 2^5681417509 is an apocalyptic number.

It is an amenable number.

5681417509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681417509 is an equidigital number, since it uses as much as digits as its factorization.

5681417509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 5681417509 is about 75375.1783347807. The cubic root of 5681417509 is about 1784.3726930751.

The spelling of 5681417509 in words is "five billion, six hundred eighty-one million, four hundred seventeen thousand, five hundred nine".