2580429920821 has 2 divisors, whose sum is σ = 2580429920822. Its totient is φ = 2580429920820.

The previous prime is 2580429920779. The next prime is 2580429920839. The reversal of 2580429920821 is 1280299240852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2261080608721 + 319349312100 = 1503689^2 + 565110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580429920821 - 2²¹ = 2580427823669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2580429920851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290214960410 + 1290214960411.

It is an arithmetic number, because the mean of its divisors is an integer number (1290214960411).

Almost surely, 2^{2580429920821} is an apocalyptic number.

It is an amenable number.

2580429920821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580429920821 is an equidigital number, since it uses as much as digits as its factorization.

2580429920821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 2580429920821 in words is "two trillion, five hundred eighty billion, four hundred twenty-nine million, nine hundred twenty thousand, eight hundred twenty-one".