2271780853 has 4 divisors (see below), whose sum is σ = 2271876640. Its totient is φ = 2271685068.

The previous prime is 2271780851. The next prime is 2271780857. The reversal of 2271780853 is 3580871722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2271780853 - 2¹ = 2271780851 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 (2271780851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16918 + ... + 69496.

It is an arithmetic number, because the mean of its divisors is an integer number (567969160).

Almost surely, 2^2271780853 is an apocalyptic number.

It is an amenable number.

2271780853 is a deficient number, since it is larger than the sum of its proper divisors (95787).

2271780853 is an equidigital number, since it uses as much as digits as its factorization.

2271780853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95786.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 2271780853 is about 47663.2022948522. The cubic root of 2271780853 is about 1314.5854212190.

The spelling of 2271780853 in words is "two billion, two hundred seventy-one million, seven hundred eighty thousand, eight hundred fifty-three".