70163984867 has 2 divisors, whose sum is σ = 70163984868. Its totient is φ = 70163984866.

The previous prime is 70163984797. The next prime is 70163984887. The reversal of 70163984867 is 76848936107.

It is a strong prime.

It is an emirp because it is prime and its reverse (76848936107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70163984867 - 2¹² = 70163980771 is a prime.

It is not a weakly prime, because it can be changed into another prime (70163984887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35081992433 + 35081992434.

It is an arithmetic number, because the mean of its divisors is an integer number (35081992434).

Almost surely, 2^70163984867 is an apocalyptic number.

70163984867 is a deficient number, since it is larger than the sum of its proper divisors (1).

70163984867 is an equidigital number, since it uses as much as digits as its factorization.

70163984867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 70163984867 in words is "seventy billion, one hundred sixty-three million, nine hundred eighty-four thousand, eight hundred sixty-seven".