1824641281 has 2 divisors, whose sum is σ = 1824641282. Its totient is φ = 1824641280.

The previous prime is 1824641251. The next prime is 1824641293. The reversal of 1824641281 is 1821464281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1816890625 + 7750656 = 42625^2 + 2784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1824641281 - 2⁵ = 1824641249 is a prime.

It is a super-2 number, since 2×1824641281² = 6658631608658641922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1824641281.

It is not a weakly prime, because it can be changed into another prime (1824641201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912320640 + 912320641.

It is an arithmetic number, because the mean of its divisors is an integer number (912320641).

Almost surely, 2^1824641281 is an apocalyptic number.

It is an amenable number.

1824641281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1824641281 is an equidigital number, since it uses as much as digits as its factorization.

1824641281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24576, while the sum is 37.

The square root of 1824641281 is about 42715.8200319273. The cubic root of 1824641281 is about 1221.9661213791.

The spelling of 1824641281 in words is "one billion, eight hundred twenty-four million, six hundred forty-one thousand, two hundred eighty-one".