2004480520821 has 6 divisors (see below), whose sum is σ = 2895360752310. Its totient is φ = 1336320347208.

The previous prime is 2004480520817. The next prime is 2004480520859. The reversal of 2004480520821 is 1280250844002.

2004480520821 is a `hidden beast` number, since 2 + 0 + 0 + 448 + 0 + 5 + 208 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1631275601796 + 373204919025 = 1277214^2 + 610905^2 .

It is not a de Polignac number, because 2004480520821 - 2² = 2004480520817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004480520121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111360028926 + ... + 111360028943.

It is an arithmetic number, because the mean of its divisors is an integer number (482560125385).

Almost surely, 2^{2004480520821} is an apocalyptic number.

It is an amenable number.

2004480520821 is a deficient number, since it is larger than the sum of its proper divisors (890880231489).

2004480520821 is a wasteful number, since it uses less digits than its factorization.

2004480520821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222720057875 (or 222720057872 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The spelling of 2004480520821 in words is "two trillion, four billion, four hundred eighty million, five hundred twenty thousand, eight hundred twenty-one".