194539516322 has 6 divisors (see below), whose sum is σ = 291810210129. Its totient is φ = 97269446280.

The previous prime is 194539516321. The next prime is 194539516333. The reversal of 194539516322 is 223615935491.

It can be written as a sum of positive squares in 2 ways, for example, as 194524220401 + 15295921 = 441049^2 + 3911^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=311881.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194539516321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 467822 + ... + 779702.

Almost surely, 2^194539516322 is an apocalyptic number.

194539516322 is a deficient number, since it is larger than the sum of its proper divisors (97270693807).

194539516322 is an frugal number, since it uses more digits than its factorization.

194539516322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623764 (or 311883 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 50.

Multiplying 194539516322 by its sum of digits (50), we get a square (9726975816100 = 3118810²).

The spelling of 194539516322 in words is "one hundred ninety-four billion, five hundred thirty-nine million, five hundred sixteen thousand, three hundred twenty-two".