1421066667017 has 2 divisors, whose sum is σ = 1421066667018. Its totient is φ = 1421066667016.

The previous prime is 1421066666927. The next prime is 1421066667023. The reversal of 1421066667017 is 7107666601241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1285822191481 + 135244475536 = 1133941^2 + 367756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421066667017 - 2¹⁶ = 1421066601481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421066667077) 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, 710533333508 + 710533333509.

It is an arithmetic number, because the mean of its divisors is an integer number (710533333509).

Almost surely, 2^{1421066667017} is an apocalyptic number.

It is an amenable number.

1421066667017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421066667017 is an equidigital number, since it uses as much as digits as its factorization.

1421066667017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 1421066667017 in words is "one trillion, four hundred twenty-one billion, sixty-six million, six hundred sixty-seven thousand, seventeen".