4338864641 has 2 divisors, whose sum is σ = 4338864642. Its totient is φ = 4338864640.

The previous prime is 4338864637. The next prime is 4338864671. The reversal of 4338864641 is 1464688334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3930663025 + 408201616 = 62695^2 + 20204^2 .

It is a cyclic number.

It is not a de Polignac number, because 4338864641 - 2² = 4338864637 is a prime.

It is not a weakly prime, because it can be changed into another prime (4338864671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2169432320 + 2169432321.

It is an arithmetic number, because the mean of its divisors is an integer number (2169432321).

Almost surely, 2^4338864641 is an apocalyptic number.

It is an amenable number.

4338864641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4338864641 is an equidigital number, since it uses as much as digits as its factorization.

4338864641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 47.

The square root of 4338864641 is about 65870.0587596519. The cubic root of 4338864641 is about 1631.0177994803.

The spelling of 4338864641 in words is "four billion, three hundred thirty-eight million, eight hundred sixty-four thousand, six hundred forty-one".