6889144391393 has 8 divisors (see below), whose sum is σ = 7957514377440. Its totient is φ = 5894455094080.

The previous prime is 6889144391387. The next prime is 6889144391401. The reversal of 6889144391393 is 3931934419886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6889144391393 - 2⁴ = 6889144391377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6889144391293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18420171983 + ... + 18420172356.

It is an arithmetic number, because the mean of its divisors is an integer number (994689297180).

Almost surely, 2^{6889144391393} is an apocalyptic number.

It is an amenable number.

6889144391393 is a deficient number, since it is larger than the sum of its proper divisors (1068369986047).

6889144391393 is a wasteful number, since it uses less digits than its factorization.

6889144391393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36840344367.

The product of its digits is 120932352, while the sum is 68.

The spelling of 6889144391393 in words is "six trillion, eight hundred eighty-nine billion, one hundred forty-four million, three hundred ninety-one thousand, three hundred ninety-three".