6442450943 has 4 divisors (see below), whose sum is σ = 6506237688. Its totient is φ = 6378664200.

The previous prime is 6442450939. The next prime is 6442450967. The reversal of 6442450943 is 3490542446.

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 6442450943 - 2² = 6442450939 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4, base 8 and base 16.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 6442450943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442450933) 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, 31893221 + ... + 31893422.

It is an arithmetic number, because the mean of its divisors is an integer number (1626559422).

Almost surely, 2^6442450943 is an apocalyptic number.

6442450943 is a deficient number, since it is larger than the sum of its proper divisors (63786745).

6442450943 is a wasteful number, since it uses less digits than its factorization.

6442450943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63786744.

The product of its (nonzero) digits is 414720, while the sum is 41.

The square root of 6442450943 is about 80264.8798852898. The cubic root of 6442450943 is about 1860.7314869638.

The spelling of 6442450943 in words is "six billion, four hundred forty-two million, four hundred fifty thousand, nine hundred forty-three".