20104463612643 has 32 divisors (see below), whose sum is σ = 27234309980160. Its totient is φ = 13189524878880.

The previous prime is 20104463612641. The next prime is 20104463612663. The reversal of 20104463612643 is 34621636440102.

It is not a de Polignac number, because 20104463612643 - 2¹ = 20104463612641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20104463612595 and 20104463612604.

It is not an unprimeable number, because it can be changed into a prime (20104463612641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255018930 + ... + 255097752.

It is an arithmetic number, because the mean of its divisors is an integer number (851072186880).

Almost surely, 2^{20104463612643} is an apocalyptic number.

20104463612643 is a deficient number, since it is larger than the sum of its proper divisors (7129846367517).

20104463612643 is a wasteful number, since it uses less digits than its factorization.

20104463612643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81119.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20104463612643 in words is "twenty trillion, one hundred four billion, four hundred sixty-three million, six hundred twelve thousand, six hundred forty-three".