823340938805 has 32 divisors (see below), whose sum is σ = 1258012200960. Its totient is φ = 502331238720.

The previous prime is 823340938747. The next prime is 823340938807. The reversal of 823340938805 is 508839043328.

It is not a de Polignac number, because 823340938805 - 2¹⁶ = 823340873269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823340938807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22732415 + ... + 22768604.

It is an arithmetic number, because the mean of its divisors is an integer number (39312881280).

Almost surely, 2^823340938805 is an apocalyptic number.

It is an amenable number.

823340938805 is a deficient number, since it is larger than the sum of its proper divisors (434671262155).

823340938805 is a wasteful number, since it uses less digits than its factorization.

823340938805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45501089.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 823340938805 in words is "eight hundred twenty-three billion, three hundred forty million, nine hundred thirty-eight thousand, eight hundred five".