6402643603 has 2 divisors, whose sum is σ = 6402643604. Its totient is φ = 6402643602.

The previous prime is 6402643601. The next prime is 6402643657. The reversal of 6402643603 is 3063462046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6402643603 - 2¹ = 6402643601 is a prime.

Together with 6402643601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6402643601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201321801 + 3201321802.

It is an arithmetic number, because the mean of its divisors is an integer number (3201321802).

Almost surely, 2^6402643603 is an apocalyptic number.

6402643603 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402643603 is an equidigital number, since it uses as much as digits as its factorization.

6402643603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 6402643603 is about 80016.5208128921. The cubic root of 6402643603 is about 1856.8911340504.

The spelling of 6402643603 in words is "six billion, four hundred two million, six hundred forty-three thousand, six hundred three".