2271783381 has 8 divisors (see below), whose sum is σ = 3461765184. Its totient is φ = 1298161920.

The previous prime is 2271783337. The next prime is 2271783401. The reversal of 2271783381 is 1833871722.

2271783381 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 not a de Polignac number, because 2271783381 - 2¹⁷ = 2271652309 is a prime.

It is a super-2 number, since 2×2271783381² = 10321999460375582322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271783281) 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, 54090060 + ... + 54090101.

It is an arithmetic number, because the mean of its divisors is an integer number (432720648).

Almost surely, 2^2271783381 is an apocalyptic number.

2271783381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2271783381 is a deficient number, since it is larger than the sum of its proper divisors (1189981803).

2271783381 is a wasteful number, since it uses less digits than its factorization.

2271783381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108180171.

The product of its digits is 112896, while the sum is 42.

The square root of 2271783381 is about 47663.2288142547. The cubic root of 2271783381 is about 1314.5859088351.

The spelling of 2271783381 in words is "two billion, two hundred seventy-one million, seven hundred eighty-three thousand, three hundred eighty-one".