2256866471 has 4 divisors (see below), whose sum is σ = 2293864344. Its totient is φ = 2219868600.

The previous prime is 2256866441. The next prime is 2256866477. The reversal of 2256866471 is 1746686522.

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

It is a cyclic number.

It is not a de Polignac number, because 2256866471 - 2¹⁴ = 2256850087 is a prime.

It is a super-3 number, since 3×2256866471³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256866477) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18498845 + ... + 18498966.

It is an arithmetic number, because the mean of its divisors is an integer number (573466086).

Almost surely, 2^2256866471 is an apocalyptic number.

2256866471 is a deficient number, since it is larger than the sum of its proper divisors (36997873).

2256866471 is an equidigital number, since it uses as much as digits as its factorization.

2256866471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36997872.

The product of its digits is 967680, while the sum is 47.

The square root of 2256866471 is about 47506.4887252257. The cubic root of 2256866471 is about 1311.7023245121.

The spelling of 2256866471 in words is "two billion, two hundred fifty-six million, eight hundred sixty-six thousand, four hundred seventy-one".