1383921665627 has 2 divisors, whose sum is σ = 1383921665628. Its totient is φ = 1383921665626.

The previous prime is 1383921665611. The next prime is 1383921665629. The reversal of 1383921665627 is 7265661293831.

It is a strong prime.

It is an emirp because it is prime and its reverse (7265661293831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1383921665627 - 2⁴ = 1383921665611 is a prime.

Together with 1383921665629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1383921665629) 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, 691960832813 + 691960832814.

It is an arithmetic number, because the mean of its divisors is an integer number (691960832814).

Almost surely, 2^{1383921665627} is an apocalyptic number.

1383921665627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383921665627 is an equidigital number, since it uses as much as digits as its factorization.

1383921665627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 1383921665627 in words is "one trillion, three hundred eighty-three billion, nine hundred twenty-one million, six hundred sixty-five thousand, six hundred twenty-seven".