2104780017796 has 9 divisors (see below), whose sum is σ = 3683370108901. Its totient is φ = 1052388558112.

The previous prime is 2104780017773. The next prime is 2104780017827. The reversal of 2104780017796 is 6977100874012.

The square root of 2104780017796 is 1450786.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1407995828100 + 696784189696 = 1186590^2 + 834736^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 2538876 + ... + 3264268.

Almost surely, 2^{2104780017796} is an apocalyptic number.

2104780017796 is the 1450786-th square number.

It is an amenable number.

2104780017796 is a deficient number, since it is larger than the sum of its proper divisors (1578590091105).

2104780017796 is an frugal number, since it uses more digits than its factorization.

2104780017796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450790 (or 725395 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 2104780017796 in words is "two trillion, one hundred four billion, seven hundred eighty million, seventeen thousand, seven hundred ninety-six".