1421584983647 has 2 divisors, whose sum is σ = 1421584983648. Its totient is φ = 1421584983646.

The previous prime is 1421584983617. The next prime is 1421584983673. The reversal of 1421584983647 is 7463894851241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421584983647 - 2²⁴ = 1421568206431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421584983647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421584983607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710792491823 + 710792491824.

It is an arithmetic number, because the mean of its divisors is an integer number (710792491824).

Almost surely, 2^{1421584983647} is an apocalyptic number.

1421584983647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421584983647 is an equidigital number, since it uses as much as digits as its factorization.

1421584983647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46448640, while the sum is 62.

The spelling of 1421584983647 in words is "one trillion, four hundred twenty-one billion, five hundred eighty-four million, nine hundred eighty-three thousand, six hundred forty-seven".