194535872768 has 72 divisors (see below), whose sum is σ = 393365494368. Its totient is φ = 96004308992.

The previous prime is 194535872753. The next prime is 194535872801. The reversal of 194535872768 is 867278535491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25855055 + ... + 25862577.

It is an arithmetic number, because the mean of its divisors is an integer number (5463409644).

Almost surely, 2^194535872768 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 194535872768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196682747184).

194535872768 is an abundant number, since it is smaller than the sum of its proper divisors (198829621600).

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

194535872768 is an equidigital number, since it uses as much as digits as its factorization.

194535872768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839 (or 8825 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 65.

The spelling of 194535872768 in words is "one hundred ninety-four billion, five hundred thirty-five million, eight hundred seventy-two thousand, seven hundred sixty-eight".