1612211186867 has 2 divisors, whose sum is σ = 1612211186868. Its totient is φ = 1612211186866.

The previous prime is 1612211186801. The next prime is 1612211186881. The reversal of 1612211186867 is 7686811122161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1612211186867 - 2³² = 1607916219571 is a prime.

It is a super-2 number, since 2×1612211186867² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1612211086867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806105593433 + 806105593434.

It is an arithmetic number, because the mean of its divisors is an integer number (806105593434).

Almost surely, 2^{1612211186867} is an apocalyptic number.

1612211186867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612211186867 is an equidigital number, since it uses as much as digits as its factorization.

1612211186867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 50.

The spelling of 1612211186867 in words is "one trillion, six hundred twelve billion, two hundred eleven million, one hundred eighty-six thousand, eight hundred sixty-seven".