1434365615621 has 2 divisors, whose sum is σ = 1434365615622. Its totient is φ = 1434365615620.

The previous prime is 1434365615537. The next prime is 1434365615623. The reversal of 1434365615621 is 1265165634341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1434212227396 + 153388225 = 1197586^2 + 12385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434365615621 - 2¹⁰ = 1434365614597 is a prime.

Together with 1434365615623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434365615623) 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, 717182807810 + 717182807811.

It is an arithmetic number, because the mean of its divisors is an integer number (717182807811).

Almost surely, 2^{1434365615621} is an apocalyptic number.

It is an amenable number.

1434365615621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434365615621 is an equidigital number, since it uses as much as digits as its factorization.

1434365615621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The spelling of 1434365615621 in words is "one trillion, four hundred thirty-four billion, three hundred sixty-five million, six hundred fifteen thousand, six hundred twenty-one".