1306453603643 has 4 divisors (see below), whose sum is σ = 1383303815640. Its totient is φ = 1229603391648.

The previous prime is 1306453603613. The next prime is 1306453603699. The reversal of 1306453603643 is 3463063546031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1306453603643 - 2⁶ = 1306453603579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1306453603594 and 1306453603603.

It is not an unprimeable number, because it can be changed into a prime (1306453603613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38425105973 + ... + 38425106006.

It is an arithmetic number, because the mean of its divisors is an integer number (345825953910).

Almost surely, 2^{1306453603643} is an apocalyptic number.

1306453603643 is a deficient number, since it is larger than the sum of its proper divisors (76850211997).

1306453603643 is an equidigital number, since it uses as much as digits as its factorization.

1306453603643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76850211996.

The product of its (nonzero) digits is 1399680, while the sum is 44.

The spelling of 1306453603643 in words is "one trillion, three hundred six billion, four hundred fifty-three million, six hundred three thousand, six hundred forty-three".