1344622512991 has 2 divisors, whose sum is σ = 1344622512992. Its totient is φ = 1344622512990.

The previous prime is 1344622512983. The next prime is 1344622513019. The reversal of 1344622512991 is 1992152264431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1344622512991 - 2³ = 1344622512983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344622512911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672311256495 + 672311256496.

It is an arithmetic number, because the mean of its divisors is an integer number (672311256496).

Almost surely, 2^{1344622512991} is an apocalyptic number.

1344622512991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344622512991 is an equidigital number, since it uses as much as digits as its factorization.

1344622512991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The spelling of 1344622512991 in words is "one trillion, three hundred forty-four billion, six hundred twenty-two million, five hundred twelve thousand, nine hundred ninety-one".