2689839879 has 8 divisors (see below), whose sum is σ = 3596614512. Its totient is φ = 1788145920.

The previous prime is 2689839863. The next prime is 2689839883. The reversal of 2689839879 is 9789389862.

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

It is not a de Polignac number, because 2689839879 - 2⁴ = 2689839863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689839839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268932 + ... + 1271049.

It is an arithmetic number, because the mean of its divisors is an integer number (449576814).

Almost surely, 2^2689839879 is an apocalyptic number.

2689839879 is a deficient number, since it is larger than the sum of its proper divisors (906774633).

2689839879 is a wasteful number, since it uses less digits than its factorization.

2689839879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540337.

The product of its digits is 94058496, while the sum is 69.

The square root of 2689839879 is about 51863.6662703284. Note that the first 3 decimals coincide. The cubic root of 2689839879 is about 1390.7278211388.

The spelling of 2689839879 in words is "two billion, six hundred eighty-nine million, eight hundred thirty-nine thousand, eight hundred seventy-nine".