2274648781985 has 16 divisors (see below), whose sum is σ = 2796207381072. Its totient is φ = 1775301504000.

The previous prime is 2274648781981. The next prime is 2274648782009. The reversal of 2274648781985 is 5891878464722.

It can be written as a sum of positive squares in 8 ways, for example, as 32729513569 + 2241919268416 = 180913^2 + 1497304^2 .

It is not a de Polignac number, because 2274648781985 - 2² = 2274648781981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2274648781981) 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 15 ways as a sum of consecutive naturals, for example, 18371285 + ... + 18494685.

It is an arithmetic number, because the mean of its divisors is an integer number (174762961317).

Almost surely, 2^{2274648781985} is an apocalyptic number.

It is an amenable number.

2274648781985 is a deficient number, since it is larger than the sum of its proper divisors (521558599087).

2274648781985 is a wasteful number, since it uses less digits than its factorization.

2274648781985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213364.

The product of its digits is 433520640, while the sum is 71.

The spelling of 2274648781985 in words is "two trillion, two hundred seventy-four billion, six hundred forty-eight million, seven hundred eighty-one thousand, nine hundred eighty-five".