22757262366821 has 2 divisors, whose sum is σ = 22757262366822. Its totient is φ = 22757262366820.

The previous prime is 22757262366731. The next prime is 22757262366829. The reversal of 22757262366821 is 12866326275722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15228335522500 + 7528926844321 = 3902350^2 + 2743889^2 .

It is a cyclic number.

It is not a de Polignac number, because 22757262366821 - 2¹⁸ = 22757262104677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22757262366829) by changing a digit.

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 as a sum of consecutive naturals, namely, 11378631183410 + 11378631183411.

It is an arithmetic number, because the mean of its divisors is an integer number (11378631183411).

Almost surely, 2^{22757262366821} is an apocalyptic number.

It is an amenable number.

22757262366821 is a deficient number, since it is larger than the sum of its proper divisors (1).

22757262366821 is an equidigital number, since it uses as much as digits as its factorization.

22757262366821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40642560, while the sum is 59.

The spelling of 22757262366821 in words is "twenty-two trillion, seven hundred fifty-seven billion, two hundred sixty-two million, three hundred sixty-six thousand, eight hundred twenty-one".