2256689911 has 8 divisors (see below), whose sum is σ = 2585991584. Its totient is φ = 1929117600.

The previous prime is 2256689887. The next prime is 2256689921. The reversal of 2256689911 is 1199866522.

2256689911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2256689911 - 2¹⁷ = 2256558839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256689921) 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, 429540 + ... + 434761.

It is an arithmetic number, because the mean of its divisors is an integer number (323248948).

Almost surely, 2^2256689911 is an apocalyptic number.

2256689911 is a deficient number, since it is larger than the sum of its proper divisors (329301673).

2256689911 is an equidigital number, since it uses as much as digits as its factorization.

2256689911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864681.

The product of its digits is 466560, while the sum is 49.

The square root of 2256689911 is about 47504.6304164131. The cubic root of 2256689911 is about 1311.6681177620.

The spelling of 2256689911 in words is "two billion, two hundred fifty-six million, six hundred eighty-nine thousand, nine hundred eleven".