10581008749 has 2 divisors, whose sum is σ = 10581008750. Its totient is φ = 10581008748.

The previous prime is 10581008719. The next prime is 10581008797. The reversal of 10581008749 is 94780018501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6071214724 + 4509794025 = 77918^2 + 67155^2 .

It is a cyclic number.

It is not a de Polignac number, because 10581008749 - 2¹¹ = 10581006701 is a prime.

It is a super-2 number, since 2×10581008749² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10581008719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5290504374 + 5290504375.

It is an arithmetic number, because the mean of its divisors is an integer number (5290504375).

Almost surely, 2^10581008749 is an apocalyptic number.

It is an amenable number.

10581008749 is a deficient number, since it is larger than the sum of its proper divisors (1).

10581008749 is an equidigital number, since it uses as much as digits as its factorization.

10581008749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 10581008749 in words is "ten billion, five hundred eighty-one million, eight thousand, seven hundred forty-nine".