4003323003649 has 2 divisors, whose sum is σ = 4003323003650. Its totient is φ = 4003323003648.

The previous prime is 4003323003643. The next prime is 4003323003707. The reversal of 4003323003649 is 9463003233004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2164605987600 + 1838717016049 = 1471260^2 + 1355993^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003323003649 - 2⁹ = 4003323003137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4003323003643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001661501824 + 2001661501825.

It is an arithmetic number, because the mean of its divisors is an integer number (2001661501825).

Almost surely, 2^{4003323003649} is an apocalyptic number.

It is an amenable number.

4003323003649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4003323003649 is an equidigital number, since it uses as much as digits as its factorization.

4003323003649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 37.

The spelling of 4003323003649 in words is "four trillion, three billion, three hundred twenty-three million, three thousand, six hundred forty-nine".