2274478861 has 4 divisors (see below), whose sum is σ = 2274765724. Its totient is φ = 2274192000.

The previous prime is 2274478831. The next prime is 2274478873. The reversal of 2274478861 is 1688744722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1665129636 + 609349225 = 40806^2 + 24685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2274478861 - 2¹³ = 2274470669 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 (2274478831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131190 + ... + 147511.

It is an arithmetic number, because the mean of its divisors is an integer number (568691431).

Almost surely, 2^2274478861 is an apocalyptic number.

It is an amenable number.

2274478861 is a deficient number, since it is larger than the sum of its proper divisors (286863).

2274478861 is an equidigital number, since it uses as much as digits as its factorization.

2274478861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286862.

The product of its digits is 1204224, while the sum is 49.

The square root of 2274478861 is about 47691.4967368398. The cubic root of 2274478861 is about 1315.1056238077.

The spelling of 2274478861 in words is "two billion, two hundred seventy-four million, four hundred seventy-eight thousand, eight hundred sixty-one".