194798402713 has 4 divisors (see below), whose sum is σ = 195096716388. Its totient is φ = 194500089040.

The previous prime is 194798402699. The next prime is 194798402717. The reversal of 194798402713 is 317204897491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37988738649 + 156809664064 = 194907^2 + 395992^2 .

It is a cyclic number.

It is not a de Polignac number, because 194798402713 - 2¹⁷ = 194798271641 is a prime.

It is a super-2 number, since 2×194798402713² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194798402717) 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, 149155858 + ... + 149157163.

It is an arithmetic number, because the mean of its divisors is an integer number (48774179097).

Almost surely, 2^194798402713 is an apocalyptic number.

It is an amenable number.

194798402713 is a deficient number, since it is larger than the sum of its proper divisors (298313675).

194798402713 is an equidigital number, since it uses as much as digits as its factorization.

194798402713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298313674.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 194798402713 in words is "one hundred ninety-four billion, seven hundred ninety-eight million, four hundred two thousand, seven hundred thirteen".