6889355385 has 16 divisors (see below), whose sum is σ = 12025056960. Its totient is φ = 3340293440.

The previous prime is 6889355377. The next prime is 6889355387. The reversal of 6889355385 is 5835539886.

It is not a de Polignac number, because 6889355385 - 2³ = 6889355377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6889355387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20876670 + ... + 20876999.

It is an arithmetic number, because the mean of its divisors is an integer number (751566060).

Almost surely, 2^6889355385 is an apocalyptic number.

It is an amenable number.

6889355385 is a deficient number, since it is larger than the sum of its proper divisors (5135701575).

6889355385 is a wasteful number, since it uses less digits than its factorization.

6889355385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41753688.

The product of its digits is 31104000, while the sum is 60.

The square root of 6889355385 is about 83002.1408458842. The cubic root of 6889355385 is about 1902.7987732434.

The spelling of 6889355385 in words is "six billion, eight hundred eighty-nine million, three hundred fifty-five thousand, three hundred eighty-five".