6403445336 has 16 divisors (see below), whose sum is σ = 12141365400. Its totient is φ = 3165747904.

The previous prime is 6403445297. The next prime is 6403445339. The reversal of 6403445336 is 6335443046.

It is a super-2 number, since 2×6403445336² = 82008224342280305792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6403445336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403445339) 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, 4496090 + ... + 4497513.

Almost surely, 2^6403445336 is an apocalyptic number.

It is an amenable number.

6403445336 is a deficient number, since it is larger than the sum of its proper divisors (5737920064).

6403445336 is a wasteful number, since it uses less digits than its factorization.

6403445336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993698 (or 8993694 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 38.

The square root of 6403445336 is about 80021.5304527475. The cubic root of 6403445336 is about 1856.9686368684.

The spelling of 6403445336 in words is "six billion, four hundred three million, four hundred forty-five thousand, three hundred thirty-six".