6385889628 has 36 divisors (see below), whose sum is σ = 16258252920. Its totient is φ = 2113314336.

The previous prime is 6385889617. The next prime is 6385889633. The reversal of 6385889628 is 8269885836.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 633075 + ... + 643082.

Almost surely, 2^6385889628 is an apocalyptic number.

It is an amenable number.

6385889628 is an abundant number, since it is smaller than the sum of its proper divisors (9872363292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6385889628 is a wasteful number, since it uses less digits than its factorization.

6385889628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276306 (or 1276301 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The square root of 6385889628 is about 79911.7615123081. The cubic root of 6385889628 is about 1855.2700597557.

The spelling of 6385889628 in words is "six billion, three hundred eighty-five million, eight hundred eighty-nine thousand, six hundred twenty-eight".