2257771969 has 8 divisors (see below), whose sum is σ = 2313480960. Its totient is φ = 2202093600.

The previous prime is 2257771913. The next prime is 2257771981. The reversal of 2257771969 is 9691777522.

It is a happy number.

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

It is not a de Polignac number, because 2257771969 - 2¹⁷ = 2257640897 is a prime.

It is a super-2 number, since 2×2257771969² = 10195068528004273922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257771469) 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, 234684 + ... + 244114.

It is an arithmetic number, because the mean of its divisors is an integer number (289185120).

Almost surely, 2^2257771969 is an apocalyptic number.

It is an amenable number.

2257771969 is a deficient number, since it is larger than the sum of its proper divisors (55708991).

2257771969 is an equidigital number, since it uses as much as digits as its factorization.

2257771969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311.

The product of its digits is 3333960, while the sum is 55.

The square root of 2257771969 is about 47516.0180255038. The cubic root of 2257771969 is about 1311.8777277439.

The spelling of 2257771969 in words is "two billion, two hundred fifty-seven million, seven hundred seventy-one thousand, nine hundred sixty-nine".