826926396641 has 2 divisors, whose sum is σ = 826926396642. Its totient is φ = 826926396640.

The previous prime is 826926396617. The next prime is 826926396671. The reversal of 826926396641 is 146693629628.

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., 709502982400 + 117423414241 = 842320^2 + 342671^2 .

It is a cyclic number.

It is not a de Polignac number, because 826926396641 - 2³⁸ = 552048489697 is a prime.

It is not a weakly prime, because it can be changed into another prime (826926396671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413463198320 + 413463198321.

It is an arithmetic number, because the mean of its divisors is an integer number (413463198321).

Almost surely, 2^826926396641 is an apocalyptic number.

It is an amenable number.

826926396641 is a deficient number, since it is larger than the sum of its proper divisors (1).

826926396641 is an equidigital number, since it uses as much as digits as its factorization.

826926396641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40310784, while the sum is 62.

The spelling of 826926396641 in words is "eight hundred twenty-six billion, nine hundred twenty-six million, three hundred ninety-six thousand, six hundred forty-one".