2689099656 has 16 divisors (see below), whose sum is σ = 6722749200. Its totient is φ = 896366544.

The previous prime is 2689099591. The next prime is 2689099663. The reversal of 2689099656 is 6569909862.

It is a self number, because there is not a number n which added to its sum of digits gives 2689099656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56022886 + ... + 56022933.

It is an arithmetic number, because the mean of its divisors is an integer number (420171825).

Almost surely, 2^2689099656 is an apocalyptic number.

It is an amenable number.

2689099656 is an abundant number, since it is smaller than the sum of its proper divisors (4033649544).

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

2689099656 is a wasteful number, since it uses less digits than its factorization.

2689099656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112045828 (or 112045824 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 60.

The square root of 2689099656 is about 51856.5295406470. The cubic root of 2689099656 is about 1390.6002369439.

The spelling of 2689099656 in words is "two billion, six hundred eighty-nine million, ninety-nine thousand, six hundred fifty-six".