6625919189 has 16 divisors (see below), whose sum is σ = 7163811072. Its totient is φ = 6111883008.

The previous prime is 6625919161. The next prime is 6625919213. The reversal of 6625919189 is 9819195266.

It is a cyclic number.

It is not a de Polignac number, because 6625919189 - 2²⁰ = 6624870613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6625919119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61712 + ... + 130614.

It is an arithmetic number, because the mean of its divisors is an integer number (447738192).

Almost surely, 2^6625919189 is an apocalyptic number.

It is an amenable number.

6625919189 is a deficient number, since it is larger than the sum of its proper divisors (537891883).

6625919189 is a wasteful number, since it uses less digits than its factorization.

6625919189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69076.

The product of its digits is 2099520, while the sum is 56.

The square root of 6625919189 is about 81399.7493177958. The cubic root of 6625919189 is about 1878.2297343904.

The spelling of 6625919189 in words is "six billion, six hundred twenty-five million, nine hundred nineteen thousand, one hundred eighty-nine".