3189994768 has 20 divisors (see below), whose sum is σ = 6244335580. Its totient is φ = 1578553344.

The previous prime is 3189994747. The next prime is 3189994771. The reversal of 3189994768 is 8674999813.

It can be written as a sum of positive squares in 2 ways, for example, as 1015824384 + 2174170384 = 31872^2 + 46628^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026153 + ... + 1029256.

It is an arithmetic number, because the mean of its divisors is an integer number (312216779).

Almost surely, 2^3189994768 is an apocalyptic number.

It is an amenable number.

3189994768 is a deficient number, since it is larger than the sum of its proper divisors (3054340812).

3189994768 is a wasteful number, since it uses less digits than its factorization.

3189994768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055514 (or 2055508 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 64.

The square root of 3189994768 is about 56480.0386685420. The cubic root of 3189994768 is about 1472.0751797811.

The spelling of 3189994768 in words is "three billion, one hundred eighty-nine million, nine hundred ninety-four thousand, seven hundred sixty-eight".