1824367681 has 2 divisors, whose sum is σ = 1824367682. Its totient is φ = 1824367680.

The previous prime is 1824367667. The next prime is 1824367703. The reversal of 1824367681 is 1867634281.

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., 1799117056 + 25250625 = 42416^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1824367681 - 2⁹ = 1824367169 is a prime.

It is a super-2 number, since 2×1824367681² = 6656634870954635522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1824367661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912183840 + 912183841.

It is an arithmetic number, because the mean of its divisors is an integer number (912183841).

Almost surely, 2^1824367681 is an apocalyptic number.

It is an amenable number.

1824367681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1824367681 is an equidigital number, since it uses as much as digits as its factorization.

1824367681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 46.

The square root of 1824367681 is about 42712.6173513167. The cubic root of 1824367681 is about 1221.9050414934.

The spelling of 1824367681 in words is "one billion, eight hundred twenty-four million, three hundred sixty-seven thousand, six hundred eighty-one".