2689880694 has 16 divisors (see below), whose sum is σ = 5381015232. Its totient is φ = 896417928.

The previous prime is 2689880657. The next prime is 2689880737. The reversal of 2689880694 is 4960889862.

It is a happy number.

2689880694 is a modest number, since divided by 80694 gives 26898 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 23104 + ... + 76899.

It is an arithmetic number, because the mean of its divisors is an integer number (336313452).

Almost surely, 2^2689880694 is an apocalyptic number.

2689880694 is an abundant number, since it is smaller than the sum of its proper divisors (2691134538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2689880694 is a wasteful number, since it uses less digits than its factorization.

2689880694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104491.

The product of its (nonzero) digits is 11943936, while the sum is 60.

The square root of 2689880694 is about 51864.0597523950. The cubic root of 2689880694 is about 1390.7348552959.

The spelling of 2689880694 in words is "two billion, six hundred eighty-nine million, eight hundred eighty thousand, six hundred ninety-four".