1344612634643 has 2 divisors, whose sum is σ = 1344612634644. Its totient is φ = 1344612634642.

The previous prime is 1344612634621. The next prime is 1344612634669. The reversal of 1344612634643 is 3464362164431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344612634643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344612634843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672306317321 + 672306317322.

It is an arithmetic number, because the mean of its divisors is an integer number (672306317322).

Almost surely, 2^{1344612634643} is an apocalyptic number.

1344612634643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344612634643 is an equidigital number, since it uses as much as digits as its factorization.

1344612634643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 47.

The spelling of 1344612634643 in words is "one trillion, three hundred forty-four billion, six hundred twelve million, six hundred thirty-four thousand, six hundred forty-three".