6385885836 has 72 divisors (see below), whose sum is σ = 16687348272. Its totient is φ = 1898582400.

The previous prime is 6385885829. The next prime is 6385885859.

6385885836 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6385885836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35466 + ... + 118446.

It is an arithmetic number, because the mean of its divisors is an integer number (231768726).

Almost surely, 2^6385885836 is an apocalyptic number.

6385885836 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6385885836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8343674136).

6385885836 is an abundant number, since it is smaller than the sum of its proper divisors (10301462436).

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

6385885836 is a wasteful number, since it uses less digits than its factorization.

6385885836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83063 (or 83050 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 60.

The square root of 6385885836 is about 79911.7377861350. The cubic root of 6385885836 is about 1855.2696925301.

The spelling of 6385885836 in words is "six billion, three hundred eighty-five million, eight hundred eighty-five thousand, eight hundred thirty-six".