192812321904 has 80 divisors (see below), whose sum is σ = 508161523200. Its totient is φ = 62979291648.

The previous prime is 192812321873. The next prime is 192812322019. The reversal of 192812321904 is 409123218291.

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, 777657 + ... + 995175.

It is an arithmetic number, because the mean of its divisors is an integer number (6352019040).

Almost surely, 2^192812321904 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 192812321904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254080761600).

192812321904 is an abundant number, since it is smaller than the sum of its proper divisors (315349201296).

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

192812321904 is a wasteful number, since it uses less digits than its factorization.

192812321904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217902 (or 217896 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 192812321904 in words is "one hundred ninety-two billion, eight hundred twelve million, three hundred twenty-one thousand, nine hundred four".