819023135848944 has 80 divisors (see below), whose sum is σ = 2293856743668000. Its totient is φ = 250315795749888.

The previous prime is 819023135848937. The next prime is 819023135849089. The reversal of 819023135848944 is 449848531320918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4404393859 + ... + 4404579810.

It is an arithmetic number, because the mean of its divisors is an integer number (28673209295850).

Almost surely, 2^{819023135848944} is an apocalyptic number.

It is an amenable number.

819023135848944 is an abundant number, since it is smaller than the sum of its proper divisors (1474833607819056).

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

819023135848944 is a wasteful number, since it uses less digits than its factorization.

819023135848944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808973842 (or 8808973836 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 69.

The spelling of 819023135848944 in words is "eight hundred nineteen trillion, twenty-three billion, one hundred thirty-five million, eight hundred forty-eight thousand, nine hundred forty-four".