2820027382821 has 32 divisors (see below), whose sum is σ = 4558074393600. Its totient is φ = 1708937112240.

The previous prime is 2820027382819. The next prime is 2820027382877. The reversal of 2820027382821 is 1282837200282.

2820027382821 is a `hidden beast` number, since 28 + 200 + 27 + 382 + 8 + 21 = 666.

2820027382821 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 2820027382821 - 2¹ = 2820027382819 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820027382801) 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, 2543040 + ... + 3479526.

It is an arithmetic number, because the mean of its divisors is an integer number (142439824800).

Almost surely, 2^{2820027382821} is an apocalyptic number.

It is an amenable number.

2820027382821 is a deficient number, since it is larger than the sum of its proper divisors (1738047010779).

2820027382821 is a wasteful number, since it uses less digits than its factorization.

2820027382821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946646 (or 946640 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 2820027382821 in words is "two trillion, eight hundred twenty billion, twenty-seven million, three hundred eighty-two thousand, eight hundred twenty-one".