194185952713 has 4 divisors (see below), whose sum is σ = 194186834068. Its totient is φ = 194185071360.

The previous prime is 194185952699. The next prime is 194185952731. The reversal of 194185952713 is 317259581491.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 99450037449 + 94735915264 = 315357^2 + 307792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194185952713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194185952743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215533 + ... + 659413.

It is an arithmetic number, because the mean of its divisors is an integer number (48546708517).

Almost surely, 2^194185952713 is an apocalyptic number.

It is an amenable number.

194185952713 is a deficient number, since it is larger than the sum of its proper divisors (881355).

194185952713 is an equidigital number, since it uses as much as digits as its factorization.

194185952713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881354.

The product of its digits is 2721600, while the sum is 55.

The spelling of 194185952713 in words is "one hundred ninety-four billion, one hundred eighty-five million, nine hundred fifty-two thousand, seven hundred thirteen".