4032543649 has 2 divisors, whose sum is σ = 4032543650. Its totient is φ = 4032543648.

The previous prime is 4032543611. The next prime is 4032543659. The reversal of 4032543649 is 9463452304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3404139025 + 628404624 = 58345^2 + 25068^2 .

It is a cyclic number.

It is not a de Polignac number, because 4032543649 - 2¹³ = 4032535457 is a prime.

It is a super-2 number, since 2×4032543649² = 32522816562180470402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4032543659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2016271824 + 2016271825.

It is an arithmetic number, because the mean of its divisors is an integer number (2016271825).

Almost surely, 2^4032543649 is an apocalyptic number.

It is an amenable number.

4032543649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4032543649 is an equidigital number, since it uses as much as digits as its factorization.

4032543649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 4032543649 is about 63502.3121547554. The cubic root of 4032543649 is about 1591.6944146815.

The spelling of 4032543649 in words is "four billion, thirty-two million, five hundred forty-three thousand, six hundred forty-nine".