1798817349844 has 48 divisors (see below), whose sum is σ = 3267239141376. Its totient is φ = 865639756800.

The previous prime is 1798817349803. The next prime is 1798817349851. The reversal of 1798817349844 is 4489437188971.

It is a congruent number.

It is an unprimeable number.

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, 205880644 + ... + 205889380.

It is an arithmetic number, because the mean of its divisors is an integer number (68067482112).

Almost surely, 2^{1798817349844} is an apocalyptic number.

It is an amenable number.

1798817349844 is a deficient number, since it is larger than the sum of its proper divisors (1468421791532).

1798817349844 is a wasteful number, since it uses less digits than its factorization.

1798817349844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656 (or 17654 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 73.

The spelling of 1798817349844 in words is "one trillion, seven hundred ninety-eight billion, eight hundred seventeen million, three hundred forty-nine thousand, eight hundred forty-four".