3624043681 has 2 divisors, whose sum is σ = 3624043682. Its totient is φ = 3624043680.

The previous prime is 3624043649. The next prime is 3624043729. The reversal of 3624043681 is 1863404263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3354263056 + 269780625 = 57916^2 + 16425^2 .

It is a cyclic number.

It is not a de Polignac number, because 3624043681 - 2⁵ = 3624043649 is a prime.

It is a super-2 number, since 2×3624043681² = 26267385203592059522, 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 3624043681.

It is not a weakly prime, because it can be changed into another prime (3624043781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1812021840 + 1812021841.

It is an arithmetic number, because the mean of its divisors is an integer number (1812021841).

Almost surely, 2^3624043681 is an apocalyptic number.

It is an amenable number.

3624043681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3624043681 is an equidigital number, since it uses as much as digits as its factorization.

3624043681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 3624043681 is about 60200.0305730819. The cubic root of 3624043681 is about 1536.0233152171.

The spelling of 3624043681 in words is "three billion, six hundred twenty-four million, forty-three thousand, six hundred eighty-one".