194646320747 has 2 divisors, whose sum is σ = 194646320748. Its totient is φ = 194646320746.

The previous prime is 194646320723. The next prime is 194646320749. The reversal of 194646320747 is 747023646491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194646320747 - 2¹⁰ = 194646319723 is a prime.

Together with 194646320749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194646320749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97323160373 + 97323160374.

It is an arithmetic number, because the mean of its divisors is an integer number (97323160374).

Almost surely, 2^194646320747 is an apocalyptic number.

194646320747 is a deficient number, since it is larger than the sum of its proper divisors (1).

194646320747 is an equidigital number, since it uses as much as digits as its factorization.

194646320747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 194646320747 in words is "one hundred ninety-four billion, six hundred forty-six million, three hundred twenty thousand, seven hundred forty-seven".