18348782409026 has 16 divisors (see below), whose sum is σ = 28522287718200. Its totient is φ = 8842465150848.

The previous prime is 18348782408989. The next prime is 18348782409043. The reversal of 18348782409026 is 62090428784381.

It can be written as a sum of positive squares in 4 ways, for example, as 12111450982801 + 6237331426225 = 3480151^2 + 2497465^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18348782409026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277962005 + ... + 278028008.

Almost surely, 2^{18348782409026} is an apocalyptic number.

18348782409026 is a deficient number, since it is larger than the sum of its proper divisors (10173505309174).

18348782409026 is a wasteful number, since it uses less digits than its factorization.

18348782409026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555990613.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 18348782409026 in words is "eighteen trillion, three hundred forty-eight billion, seven hundred eighty-two million, four hundred nine thousand, twenty-six".