6684189025 has 6 divisors (see below), whose sum is σ = 8288394422. Its totient is φ = 5347351200.

The previous prime is 6684189023. The next prime is 6684189067. The reversal of 6684189025 is 5209814866.

It can be written as a sum of positive squares in 3 ways, for example, as 1565072721 + 5119116304 = 39561^2 + 71548^2 .

It is not a de Polignac number, because 6684189025 - 2¹ = 6684189023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6684189025.

It is not an unprimeable number, because it can be changed into a prime (6684189023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133683756 + ... + 133683805.

Almost surely, 2^6684189025 is an apocalyptic number.

It is an amenable number.

6684189025 is a deficient number, since it is larger than the sum of its proper divisors (1604205397).

6684189025 is a wasteful number, since it uses less digits than its factorization.

6684189025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267367571 (or 267367566 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 6684189025 is about 81756.8897708322. The cubic root of 6684189025 is about 1883.7195322723.

The spelling of 6684189025 in words is "six billion, six hundred eighty-four million, one hundred eighty-nine thousand, twenty-five".