1679221667863 has 2 divisors, whose sum is σ = 1679221667864. Its totient is φ = 1679221667862.

The previous prime is 1679221667833. The next prime is 1679221667881. The reversal of 1679221667863 is 3687661229761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1679221667863 - 2⁵ = 1679221667831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1679221667795 and 1679221667804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1679221667833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839610833931 + 839610833932.

It is an arithmetic number, because the mean of its divisors is an integer number (839610833932).

Almost surely, 2^{1679221667863} is an apocalyptic number.

1679221667863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679221667863 is an equidigital number, since it uses as much as digits as its factorization.

1679221667863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 64.

The spelling of 1679221667863 in words is "one trillion, six hundred seventy-nine billion, two hundred twenty-one million, six hundred sixty-seven thousand, eight hundred sixty-three".