6445113432 has 32 divisors (see below), whose sum is σ = 16125361200. Its totient is φ = 2146694144.

The previous prime is 6445113421. The next prime is 6445113461. The reversal of 6445113432 is 2343115446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6445113393 and 6445113402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73233 + ... + 135104.

Almost surely, 2^6445113432 is an apocalyptic number.

It is an amenable number.

6445113432 is an abundant number, since it is smaller than the sum of its proper divisors (9680247768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6445113432 is a wasteful number, since it uses less digits than its factorization.

6445113432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209635 (or 209631 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 6445113432 is about 80281.4638132614. The cubic root of 6445113432 is about 1860.9877814932.

Adding to 6445113432 its reverse (2343115446), we get a palindrome (8788228878).

The spelling of 6445113432 in words is "six billion, four hundred forty-five million, one hundred thirteen thousand, four hundred thirty-two".