1845281640736 has 24 divisors (see below), whose sum is σ = 3651154012800. Its totient is φ = 918004431168.

The previous prime is 1845281640731. The next prime is 1845281640737. The reversal of 1845281640736 is 6370461825481.

It is not an unprimeable number, because it can be changed into a prime (1845281640731) 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, 144880696 + ... + 144893431.

It is an arithmetic number, because the mean of its divisors is an integer number (152131417200).

Almost surely, 2^{1845281640736} is an apocalyptic number.

1845281640736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1845281640736 is a deficient number, since it is larger than the sum of its proper divisors (1805872372064).

1845281640736 is a wasteful number, since it uses less digits than its factorization.

1845281640736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289774336 (or 289774328 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 1845281640736 in words is "one trillion, eight hundred forty-five billion, two hundred eighty-one million, six hundred forty thousand, seven hundred thirty-six".