194201639233 has 16 divisors (see below), whose sum is σ = 234085104000. Its totient is φ = 157387698432.

The previous prime is 194201639197. The next prime is 194201639239. The reversal of 194201639233 is 332936102491.

194201639233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 194201639233 - 2³⁷ = 56762685761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194201639233.

It is not an unprimeable number, because it can be changed into a prime (194201639239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366648 + ... + 1502041.

It is an arithmetic number, because the mean of its divisors is an integer number (14630319000).

Almost surely, 2^194201639233 is an apocalyptic number.

It is an amenable number.

194201639233 is a deficient number, since it is larger than the sum of its proper divisors (39883464767).

194201639233 is a wasteful number, since it uses less digits than its factorization.

194201639233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869224.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 194201639233 in words is "one hundred ninety-four billion, two hundred one million, six hundred thirty-nine thousand, two hundred thirty-three".