2820402486397 has 2 divisors, whose sum is σ = 2820402486398. Its totient is φ = 2820402486396.

The previous prime is 2820402486389. The next prime is 2820402486491. The reversal of 2820402486397 is 7936842040282.

2820402486397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2372126709241 + 448275777156 = 1540171^2 + 669534^2 .

It is a cyclic number.

It is not a de Polignac number, because 2820402486397 - 2³ = 2820402486389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2820402480397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410201243198 + 1410201243199.

It is an arithmetic number, because the mean of its divisors is an integer number (1410201243199).

Almost surely, 2^{2820402486397} is an apocalyptic number.

It is an amenable number.

2820402486397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820402486397 is an equidigital number, since it uses as much as digits as its factorization.

2820402486397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 2820402486397 in words is "two trillion, eight hundred twenty billion, four hundred two million, four hundred eighty-six thousand, three hundred ninety-seven".