1344621988519 has 2 divisors, whose sum is σ = 1344621988520. Its totient is φ = 1344621988518.

The previous prime is 1344621988487. The next prime is 1344621988573. The reversal of 1344621988519 is 9158891264431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1344621988519 - 2⁵ = 1344621988487 is a prime.

It is a super-2 number, since 2×1344621988519² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344621980519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672310994259 + 672310994260.

It is an arithmetic number, because the mean of its divisors is an integer number (672310994260).

Almost surely, 2^{1344621988519} is an apocalyptic number.

1344621988519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344621988519 is an equidigital number, since it uses as much as digits as its factorization.

1344621988519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 61.

The spelling of 1344621988519 in words is "one trillion, three hundred forty-four billion, six hundred twenty-one million, nine hundred eighty-eight thousand, five hundred nineteen".