194549993233 has 8 divisors (see below), whose sum is σ = 206010189000. Its totient is φ = 183091584000.

The previous prime is 194549993219. The next prime is 194549993269. The reversal of 194549993233 is 332399945491.

It can be written as a sum of positive squares in 4 ways, for example, as 21341703744 + 173208289489 = 146088^2 + 416183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194549993233 - 2¹⁷ = 194549862161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194549993293) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 219108 + ... + 661141.

It is an arithmetic number, because the mean of its divisors is an integer number (25751273625).

Almost surely, 2^194549993233 is an apocalyptic number.

It is an amenable number.

194549993233 is a deficient number, since it is larger than the sum of its proper divisors (11460195767).

194549993233 is a wasteful number, since it uses less digits than its factorization.

194549993233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893267.

The product of its digits is 28343520, while the sum is 61.

The spelling of 194549993233 in words is "one hundred ninety-four billion, five hundred forty-nine million, nine hundred ninety-three thousand, two hundred thirty-three".