6436443450 has 24 divisors (see below), whose sum is σ = 15962380128. Its totient is φ = 1716384880.

The previous prime is 6436443449. The next prime is 6436443467. The reversal of 6436443450 is 543446346.

It is a junction number, because it is equal to n+sod(n) for n = 6436443399 and 6436443408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21454662 + ... + 21454961.

It is an arithmetic number, because the mean of its divisors is an integer number (665099172).

Almost surely, 2^6436443450 is an apocalyptic number.

6436443450 is an abundant number, since it is smaller than the sum of its proper divisors (9525936678).

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

6436443450 is a wasteful number, since it uses less digits than its factorization.

6436443450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42909638 (or 42909633 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 39.

The square root of 6436443450 is about 80227.4482331328. The cubic root of 6436443450 is about 1860.1529386325.

Adding to 6436443450 its reverse (543446346), we get a palindrome (6979889796).

The spelling of 6436443450 in words is "six billion, four hundred thirty-six million, four hundred forty-three thousand, four hundred fifty".