2661844846 has 16 divisors (see below), whose sum is σ = 4014586800. Its totient is φ = 1323667008.

The previous prime is 2661844831. The next prime is 2661844847. The reversal of 2661844846 is 6484481662.

It is a self number, because there is not a number n which added to its sum of digits gives 2661844846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661844847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329026 + ... + 337018.

It is an arithmetic number, because the mean of its divisors is an integer number (250911675).

Almost surely, 2^2661844846 is an apocalyptic number.

2661844846 is a deficient number, since it is larger than the sum of its proper divisors (1352741954).

2661844846 is a wasteful number, since it uses less digits than its factorization.

2661844846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8883.

The product of its digits is 1769472, while the sum is 49.

The square root of 2661844846 is about 51593.0697477869. The cubic root of 2661844846 is about 1385.8862284948.

The spelling of 2661844846 in words is "two billion, six hundred sixty-one million, eight hundred forty-four thousand, eight hundred forty-six".