1345325446649 has 2 divisors, whose sum is σ = 1345325446650. Its totient is φ = 1345325446648.

The previous prime is 1345325446637. The next prime is 1345325446667. The reversal of 1345325446649 is 9466445235431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1307180622400 + 38144824249 = 1143320^2 + 195307^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345325446649 - 2⁸ = 1345325446393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1345325446594 and 1345325446603.

It is not a weakly prime, because it can be changed into another prime (1345325446249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672662723324 + 672662723325.

It is an arithmetic number, because the mean of its divisors is an integer number (672662723325).

Almost surely, 2^{1345325446649} is an apocalyptic number.

It is an amenable number.

1345325446649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345325446649 is an equidigital number, since it uses as much as digits as its factorization.

1345325446649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 56.

The spelling of 1345325446649 in words is "one trillion, three hundred forty-five billion, three hundred twenty-five million, four hundred forty-six thousand, six hundred forty-nine".