6389473893 has 16 divisors (see below), whose sum is σ = 9296410176. Its totient is φ = 3871312640.

The previous prime is 6389473889. The next prime is 6389473901. The reversal of 6389473893 is 3983749836.

It is a cyclic number.

It is not a de Polignac number, because 6389473893 - 2² = 6389473889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389473793) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 99805 + ... + 150797.

It is an arithmetic number, because the mean of its divisors is an integer number (581025636).

Almost surely, 2^6389473893 is an apocalyptic number.

It is an amenable number.

6389473893 is a deficient number, since it is larger than the sum of its proper divisors (2906936283).

6389473893 is a wasteful number, since it uses less digits than its factorization.

6389473893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54804.

The product of its digits is 23514624, while the sum is 60.

The square root of 6389473893 is about 79934.1847584624. The cubic root of 6389473893 is about 1855.6171028036.

The spelling of 6389473893 in words is "six billion, three hundred eighty-nine million, four hundred seventy-three thousand, eight hundred ninety-three".