823395080508 has 384 divisors, whose sum is σ = 2633637888000. Its totient is φ = 193296430080.

The previous prime is 823395080449. The next prime is 823395080579. The reversal of 823395080508 is 805080593328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 411902493 + ... + 411904491.

It is an arithmetic number, because the mean of its divisors is an integer number (6858432000).

Almost surely, 2^823395080508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823395080508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316818944000).

823395080508 is an abundant number, since it is smaller than the sum of its proper divisors (1810242807492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823395080508 is a wasteful number, since it uses less digits than its factorization.

823395080508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 823395080508 in words is "eight hundred twenty-three billion, three hundred ninety-five million, eighty thousand, five hundred eight".