6441063403 has 4 divisors (see below), whose sum is σ = 6780066760. Its totient is φ = 6102060048.

The previous prime is 6441063397. The next prime is 6441063407. The reversal of 6441063403 is 3043601446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6441063403 - 2⁹ = 6441062891 is a prime.

It is a super-2 number, since 2×6441063403² = 82974595522931880818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6441063407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169501650 + ... + 169501687.

It is an arithmetic number, because the mean of its divisors is an integer number (1695016690).

Almost surely, 2^6441063403 is an apocalyptic number.

6441063403 is a deficient number, since it is larger than the sum of its proper divisors (339003357).

6441063403 is a wasteful number, since it uses less digits than its factorization.

6441063403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339003356.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 6441063403 is about 80256.2359134790. The cubic root of 6441063403 is about 1860.5978926343.

Adding to 6441063403 its reverse (3043601446), we get a palindrome (9484664849).

The spelling of 6441063403 in words is "six billion, four hundred forty-one million, sixty-three thousand, four hundred three".