1667870842219 has 2 divisors, whose sum is σ = 1667870842220. Its totient is φ = 1667870842218.

The previous prime is 1667870842103. The next prime is 1667870842259. The reversal of 1667870842219 is 9122480787661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1667870842219 is a prime.

It is a super-2 number, since 2×1667870842219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1667870842259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833935421109 + 833935421110.

It is an arithmetic number, because the mean of its divisors is an integer number (833935421110).

Almost surely, 2^{1667870842219} is an apocalyptic number.

1667870842219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667870842219 is an equidigital number, since it uses as much as digits as its factorization.

1667870842219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 1667870842219 in words is "one trillion, six hundred sixty-seven billion, eight hundred seventy million, eight hundred forty-two thousand, two hundred nineteen".