2691395056 has 20 divisors (see below), whose sum is σ = 5959517872. Its totient is φ = 1153454976.

The previous prime is 2691395041. The next prime is 2691395089. The reversal of 2691395056 is 6505931962.

2691395056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2691395056² = 14487214694922486272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2691394997 and 2691395015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12015045 + ... + 12015268.

Almost surely, 2^2691395056 is an apocalyptic number.

It is an amenable number.

2691395056 is an abundant number, since it is smaller than the sum of its proper divisors (3268122816).

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

2691395056 is a wasteful number, since it uses less digits than its factorization.

2691395056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24030328 (or 24030322 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 46.

The square root of 2691395056 is about 51878.6570373598. The cubic root of 2691395056 is about 1390.9957938716.

The spelling of 2691395056 in words is "two billion, six hundred ninety-one million, three hundred ninety-five thousand, fifty-six".