2820800538490 has 32 divisors (see below), whose sum is σ = 5539232537280. Its totient is φ = 1025707497600.

The previous prime is 2820800538481. The next prime is 2820800538511. The reversal of 2820800538490 is 948350080282.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2582725 + ... + 3508855.

It is an arithmetic number, because the mean of its divisors is an integer number (173101016790).

Almost surely, 2^{2820800538490} is an apocalyptic number.

2820800538490 is a deficient number, since it is larger than the sum of its proper divisors (2718431998790).

2820800538490 is a wasteful number, since it uses less digits than its factorization.

2820800538490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953838.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 2820800538490 in words is "two trillion, eight hundred twenty billion, eight hundred million, five hundred thirty-eight thousand, four hundred ninety".