6393280643 has 2 divisors, whose sum is σ = 6393280644. Its totient is φ = 6393280642.

The previous prime is 6393280601. The next prime is 6393280667. The reversal of 6393280643 is 3460823936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6393280643 - 2¹⁴ = 6393264259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6393280594 and 6393280603.

It is not a weakly prime, because it can be changed into another prime (6393280693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3196640321 + 3196640322.

It is an arithmetic number, because the mean of its divisors is an integer number (3196640322).

Almost surely, 2^6393280643 is an apocalyptic number.

6393280643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6393280643 is an equidigital number, since it uses as much as digits as its factorization.

6393280643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 44.

The square root of 6393280643 is about 79957.9929900695. The cubic root of 6393280643 is about 1855.9855456593.

The spelling of 6393280643 in words is "six billion, three hundred ninety-three million, two hundred eighty thousand, six hundred forty-three".