194431305313 has 8 divisors (see below), whose sum is σ = 222307633728. Its totient is φ = 166580083824.

The previous prime is 194431305307. The next prime is 194431305317. The reversal of 194431305313 is 313503134491.

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

It is not a de Polignac number, because 194431305313 - 2¹³ = 194431297121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194431305317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6260131 + ... + 6291112.

It is an arithmetic number, because the mean of its divisors is an integer number (27788454216).

Almost surely, 2^194431305313 is an apocalyptic number.

It is an amenable number.

194431305313 is a deficient number, since it is larger than the sum of its proper divisors (27876328415).

194431305313 is a wasteful number, since it uses less digits than its factorization.

194431305313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12553463.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 194431305313 in words is "one hundred ninety-four billion, four hundred thirty-one million, three hundred five thousand, three hundred thirteen".