194731329832 has 16 divisors (see below), whose sum is σ = 393207493140. Its totient is φ = 89875998336.

The previous prime is 194731329809. The next prime is 194731329901. The reversal of 194731329832 is 238923137491.

It can be written as a sum of positive squares in 2 ways, for example, as 172137031236 + 22594298596 = 414894^2 + 150314^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 194731329832.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936208213 + ... + 936208420.

Almost surely, 2^194731329832 is an apocalyptic number.

It is an amenable number.

194731329832 is an abundant number, since it is smaller than the sum of its proper divisors (198476163308).

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

194731329832 is a wasteful number, since it uses less digits than its factorization.

194731329832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872416652 (or 1872416648 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 52.

The spelling of 194731329832 in words is "one hundred ninety-four billion, seven hundred thirty-one million, three hundred twenty-nine thousand, eight hundred thirty-two".