826315728421303 has 2 divisors, whose sum is σ = 826315728421304. Its totient is φ = 826315728421302.

The previous prime is 826315728421223. The next prime is 826315728421319. The reversal of 826315728421303 is 303124827513628.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 826315728421303 - 2⁴¹ = 824116705165751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826315728421343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413157864210651 + 413157864210652.

It is an arithmetic number, because the mean of its divisors is an integer number (413157864210652).

Almost surely, 2^{826315728421303} is an apocalyptic number.

826315728421303 is a deficient number, since it is larger than the sum of its proper divisors (1).

826315728421303 is an equidigital number, since it uses as much as digits as its factorization.

826315728421303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 826315728421303 in words is "eight hundred twenty-six trillion, three hundred fifteen billion, seven hundred twenty-eight million, four hundred twenty-one thousand, three hundred three".