1345306544993 has 2 divisors, whose sum is σ = 1345306544994. Its totient is φ = 1345306544992.

The previous prime is 1345306544977. The next prime is 1345306545043. The reversal of 1345306544993 is 3994456035431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1047116284369 + 298190260624 = 1023287^2 + 546068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345306544993 - 2⁴ = 1345306544977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345306544093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672653272496 + 672653272497.

It is an arithmetic number, because the mean of its divisors is an integer number (672653272497).

Almost surely, 2^{1345306544993} is an apocalyptic number.

It is an amenable number.

1345306544993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345306544993 is an equidigital number, since it uses as much as digits as its factorization.

1345306544993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20995200, while the sum is 56.

The spelling of 1345306544993 in words is "one trillion, three hundred forty-five billion, three hundred six million, five hundred forty-four thousand, nine hundred ninety-three".