6421143364 has 48 divisors (see below), whose sum is σ = 11534160960. Its totient is φ = 3127057920.

The previous prime is 6421143361. The next prime is 6421143383. The reversal of 6421143364 is 4633411246.

It is not an unprimeable number, because it can be changed into a prime (6421143361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11404947 + ... + 11405509.

It is an arithmetic number, because the mean of its divisors is an integer number (240295020).

Almost surely, 2^6421143364 is an apocalyptic number.

It is an amenable number.

6421143364 is a deficient number, since it is larger than the sum of its proper divisors (5113017596).

6421143364 is a wasteful number, since it uses less digits than its factorization.

6421143364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1058 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 6421143364 is about 80132.0370638361. The cubic root of 6421143364 is about 1858.6778444463.

The spelling of 6421143364 in words is "six billion, four hundred twenty-one million, one hundred forty-three thousand, three hundred sixty-four".