8470787170871 has 2 divisors, whose sum is σ = 8470787170872. Its totient is φ = 8470787170870.

The previous prime is 8470787170849. The next prime is 8470787170907. The reversal of 8470787170871 is 1780717870748.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8470787170871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8470787170798 and 8470787170807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8470787172871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4235393585435 + 4235393585436.

It is an arithmetic number, because the mean of its divisors is an integer number (4235393585436).

Almost surely, 2^{8470787170871} is an apocalyptic number.

8470787170871 is a deficient number, since it is larger than the sum of its proper divisors (1).

8470787170871 is an equidigital number, since it uses as much as digits as its factorization.

8470787170871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34420736, while the sum is 65.

The spelling of 8470787170871 in words is "eight trillion, four hundred seventy billion, seven hundred eighty-seven million, one hundred seventy thousand, eight hundred seventy-one".