1889006669 has 16 divisors (see below), whose sum is σ = 2200573440. Its totient is φ = 1604568000.

The previous prime is 1889006627. The next prime is 1889006699. The reversal of 1889006669 is 9666009881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1889006669 is a prime.

It is a super-2 number, since 2×1889006669² = 7136692391052951122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1889006669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889006699) 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, 85622 + ... + 105399.

It is an arithmetic number, because the mean of its divisors is an integer number (137535840).

Almost surely, 2^1889006669 is an apocalyptic number.

It is an amenable number.

1889006669 is a deficient number, since it is larger than the sum of its proper divisors (311566771).

1889006669 is a wasteful number, since it uses less digits than its factorization.

1889006669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191092.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 1889006669 is about 43462.7043452199. The cubic root of 1889006669 is about 1236.1689487863.

The spelling of 1889006669 in words is "one billion, eight hundred eighty-nine million, six thousand, six hundred sixty-nine".