838528466947 has 2 divisors, whose sum is σ = 838528466948. Its totient is φ = 838528466946.

The previous prime is 838528466939. The next prime is 838528466957. The reversal of 838528466947 is 749664825838.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838528466947 - 2³ = 838528466939 is a prime.

It is not a weakly prime, because it can be changed into another prime (838528466927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419264233473 + 419264233474.

It is an arithmetic number, because the mean of its divisors is an integer number (419264233474).

Almost surely, 2^838528466947 is an apocalyptic number.

838528466947 is a deficient number, since it is larger than the sum of its proper divisors (1).

838528466947 is an equidigital number, since it uses as much as digits as its factorization.

838528466947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 557383680, while the sum is 70.

The spelling of 838528466947 in words is "eight hundred thirty-eight billion, five hundred twenty-eight million, four hundred sixty-six thousand, nine hundred forty-seven".