3189536856 has 48 divisors (see below), whose sum is σ = 9423633960. Its totient is φ = 966526080.

The previous prime is 3189536839. The next prime is 3189536869. The reversal of 3189536856 is 6586359813.

3189536856 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2012805 + ... + 2014388.

Almost surely, 2^3189536856 is an apocalyptic number.

3189536856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3189536856 is an abundant number, since it is smaller than the sum of its proper divisors (6234097104).

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

3189536856 is a wasteful number, since it uses less digits than its factorization.

3189536856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027216 (or 4027209 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 3189536856 is about 56475.9847722906. The cubic root of 3189536856 is about 1472.0047394204.

It can be divided in two parts, 3189 and 536856, that added together give a palindrome (540045).

The spelling of 3189536856 in words is "three billion, one hundred eighty-nine million, five hundred thirty-six thousand, eight hundred fifty-six".