3056040521821 has 16 divisors (see below), whose sum is σ = 3663940919040. Its totient is φ = 2493515324160.

The previous prime is 3056040521819. The next prime is 3056040521893. The reversal of 3056040521821 is 1281250406503.

3056040521821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3056040521821 - 2¹ = 3056040521819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3056040521801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106002396 + ... + 106031221.

It is an arithmetic number, because the mean of its divisors is an integer number (228996307440).

Almost surely, 2^{3056040521821} is an apocalyptic number.

It is an amenable number.

3056040521821 is a deficient number, since it is larger than the sum of its proper divisors (607900397219).

3056040521821 is a wasteful number, since it uses less digits than its factorization.

3056040521821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212033724.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 3056040521821 in words is "three trillion, fifty-six billion, forty million, five hundred twenty-one thousand, eight hundred twenty-one".