2689985379 has 4 divisors (see below), whose sum is σ = 3586647176. Its totient is φ = 1793323584.

The previous prime is 2689985377. The next prime is 2689985383. The reversal of 2689985379 is 9735899862.

2689985379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2689985379 - 2¹ = 2689985377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2689985371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448330894 + ... + 448330899.

It is an arithmetic number, because the mean of its divisors is an integer number (896661794).

Almost surely, 2^2689985379 is an apocalyptic number.

2689985379 is a deficient number, since it is larger than the sum of its proper divisors (896661797).

2689985379 is an equidigital number, since it uses as much as digits as its factorization.

2689985379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896661796.

The product of its digits is 58786560, while the sum is 66.

The square root of 2689985379 is about 51865.0689674660. The cubic root of 2689985379 is about 1390.7528966401.

The spelling of 2689985379 in words is "two billion, six hundred eighty-nine million, nine hundred eighty-five thousand, three hundred seventy-nine".