828402646271 has 2 divisors, whose sum is σ = 828402646272. Its totient is φ = 828402646270.

The previous prime is 828402646237. The next prime is 828402646289. The reversal of 828402646271 is 172646204828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828402646271 - 2⁶ = 828402646207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828402606271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414201323135 + 414201323136.

It is an arithmetic number, because the mean of its divisors is an integer number (414201323136).

Almost surely, 2^828402646271 is an apocalyptic number.

828402646271 is a deficient number, since it is larger than the sum of its proper divisors (1).

828402646271 is an equidigital number, since it uses as much as digits as its factorization.

828402646271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 828402646271 in words is "eight hundred twenty-eight billion, four hundred two million, six hundred forty-six thousand, two hundred seventy-one".