823219173230 has 32 divisors (see below), whose sum is σ = 1485048600000. Its totient is φ = 328564841472.

The previous prime is 823219173229. The next prime is 823219173269. The reversal of 823219173230 is 32371912328.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25428734 + ... + 25461086.

It is an arithmetic number, because the mean of its divisors is an integer number (46407768750).

Almost surely, 2^823219173230 is an apocalyptic number.

823219173230 is a deficient number, since it is larger than the sum of its proper divisors (661829426770).

823219173230 is a wasteful number, since it uses less digits than its factorization.

823219173230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37868.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 823219173230 in words is "eight hundred twenty-three billion, two hundred nineteen million, one hundred seventy-three thousand, two hundred thirty".