2169090709 has 8 divisors (see below), whose sum is σ = 2214660672. Its totient is φ = 2123983680.

The previous prime is 2169090653. The next prime is 2169090719. The reversal of 2169090709 is 9070909612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2169090709 - 2¹¹ = 2169088661 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169090719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106257 + ... + 125014.

It is an arithmetic number, because the mean of its divisors is an integer number (276832584).

Almost surely, 2^2169090709 is an apocalyptic number.

It is an amenable number.

2169090709 is a deficient number, since it is larger than the sum of its proper divisors (45569963).

2169090709 is a wasteful number, since it uses less digits than its factorization.

2169090709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231467.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 2169090709 is about 46573.4979253223. The cubic root of 2169090709 is about 1294.4717331737.

The spelling of 2169090709 in words is "two billion, one hundred sixty-nine million, ninety thousand, seven hundred nine".