823548473818 has 8 divisors (see below), whose sum is σ = 1411797383712. Its totient is φ = 352949345916.

The previous prime is 823548473789. The next prime is 823548473843. The reversal of 823548473818 is 818374845328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29412445480 + ... + 29412445507.

It is an arithmetic number, because the mean of its divisors is an integer number (176474672964).

Almost surely, 2^823548473818 is an apocalyptic number.

823548473818 is a deficient number, since it is larger than the sum of its proper divisors (588248909894).

823548473818 is a wasteful number, since it uses less digits than its factorization.

823548473818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58824890996.

The product of its digits is 41287680, while the sum is 61.

The spelling of 823548473818 in words is "eight hundred twenty-three billion, five hundred forty-eight million, four hundred seventy-three thousand, eight hundred eighteen".