2689140889 has 16 divisors (see below), whose sum is σ = 2847486400. Its totient is φ = 2532534336.

The previous prime is 2689140863. The next prime is 2689140893. The reversal of 2689140889 is 9880419862.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2689140889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689140809) 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, 4344022 + ... + 4344640.

It is an arithmetic number, because the mean of its divisors is an integer number (177967900).

Almost surely, 2^2689140889 is an apocalyptic number.

It is an amenable number.

2689140889 is a deficient number, since it is larger than the sum of its proper divisors (158345511).

2689140889 is a wasteful number, since it uses less digits than its factorization.

2689140889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 2689140889 is about 51856.9271071860. The cubic root of 2689140889 is about 1390.6073444438.

The spelling of 2689140889 in words is "two billion, six hundred eighty-nine million, one hundred forty thousand, eight hundred eighty-nine".