3189720168 has 64 divisors (see below), whose sum is σ = 8891812800. Its totient is φ = 1059462720.

The previous prime is 3189720167. The next prime is 3189720199. The reversal of 3189720168 is 8610279813.

3189720168 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 Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3189720167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35038 + ... + 87218.

It is an arithmetic number, because the mean of its divisors is an integer number (138934575).

Almost surely, 2^3189720168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3189720168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4445906400).

3189720168 is an abundant number, since it is smaller than the sum of its proper divisors (5702092632).

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

3189720168 is a wasteful number, since it uses less digits than its factorization.

3189720168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52479 (or 52469 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 3189720168 is about 56477.6076688806. The cubic root of 3189720168 is about 1472.0329390176.

The spelling of 3189720168 in words is "three billion, one hundred eighty-nine million, seven hundred twenty thousand, one hundred sixty-eight".