6404503203 has 48 divisors (see below), whose sum is σ = 11257459200. Its totient is φ = 3500559216.

The previous prime is 6404503201. The next prime is 6404503213. The reversal of 6404503203 is 3023054046.

6404503203 is a `hidden beast` number, since 6 + 4 + 0 + 450 + 3 + 203 = 666.

It is not a de Polignac number, because 6404503203 - 2¹ = 6404503201 is a prime.

It is a super-2 number, since 2×6404503203² = 82035322554474518418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6404503201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25900 + ... + 116102.

It is an arithmetic number, because the mean of its divisors is an integer number (234530400).

Almost surely, 2^6404503203 is an apocalyptic number.

6404503203 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6404503203 is a deficient number, since it is larger than the sum of its proper divisors (4852955997).

6404503203 is a wasteful number, since it uses less digits than its factorization.

6404503203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90253 (or 90236 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 6404503203 is about 80028.1400696030. The cubic root of 6404503203 is about 1857.0708900342.

Adding to 6404503203 its reverse (3023054046), we get a palindrome (9427557249).

The spelling of 6404503203 in words is "six billion, four hundred four million, five hundred three thousand, two hundred three".