2189736669 has 16 divisors (see below), whose sum is σ = 3021693120. Its totient is φ = 1408848000.

The previous prime is 2189736613. The next prime is 2189736683. The reversal of 2189736669 is 9666379812.

It is a happy number.

It is not a de Polignac number, because 2189736669 - 2¹⁷ = 2189605597 is a prime.

It is a super-2 number, since 2×2189736669² = 9589893359126431122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189736169) 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, 256894 + ... + 265280.

It is an arithmetic number, because the mean of its divisors is an integer number (188855820).

Almost surely, 2^2189736669 is an apocalyptic number.

2189736669 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2189736669 is a deficient number, since it is larger than the sum of its proper divisors (831956451).

2189736669 is a wasteful number, since it uses less digits than its factorization.

2189736669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11420.

The product of its digits is 5878656, while the sum is 57.

The square root of 2189736669 is about 46794.6222230717. The cubic root of 2189736669 is about 1298.5658086827.

The spelling of 2189736669 in words is "two billion, one hundred eighty-nine million, seven hundred thirty-six thousand, six hundred sixty-nine".