2580355811857 has 2 divisors, whose sum is σ = 2580355811858. Its totient is φ = 2580355811856.

The previous prime is 2580355811833. The next prime is 2580355811911. The reversal of 2580355811857 is 7581185530852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2414779249936 + 165576561921 = 1553956^2 + 406911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580355811857 - 2²⁷ = 2580221594129 is a prime.

It is a super-2 number, since 2×2580355811857² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2580355511857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290177905928 + 1290177905929.

It is an arithmetic number, because the mean of its divisors is an integer number (1290177905929).

Almost surely, 2^{2580355811857} is an apocalyptic number.

It is an amenable number.

2580355811857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580355811857 is an equidigital number, since it uses as much as digits as its factorization.

2580355811857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440000, while the sum is 58.

The spelling of 2580355811857 in words is "two trillion, five hundred eighty billion, three hundred fifty-five million, eight hundred eleven thousand, eight hundred fifty-seven".