4194787647671 has 2 divisors, whose sum is σ = 4194787647672. Its totient is φ = 4194787647670.

The previous prime is 4194787647647. The next prime is 4194787647691. The reversal of 4194787647671 is 1767467874914.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4194787647671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4194787647595 and 4194787647604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4194787647641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097393823835 + 2097393823836.

It is an arithmetic number, because the mean of its divisors is an integer number (2097393823836).

Almost surely, 2^{4194787647671} is an apocalyptic number.

4194787647671 is a deficient number, since it is larger than the sum of its proper divisors (1).

4194787647671 is an equidigital number, since it uses as much as digits as its factorization.

4194787647671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 398297088, while the sum is 71.

The spelling of 4194787647671 in words is "four trillion, one hundred ninety-four billion, seven hundred eighty-seven million, six hundred forty-seven thousand, six hundred seventy-one".