1305748838605 has 16 divisors (see below), whose sum is σ = 1635059758464. Its totient is φ = 999160254400.

The previous prime is 1305748838579. The next prime is 1305748838633. The reversal of 1305748838605 is 5068388475031.

It is a happy number.

It is not a de Polignac number, because 1305748838605 - 2⁷ = 1305748838477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1305748838605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7111455 + ... + 7292755.

It is an arithmetic number, because the mean of its divisors is an integer number (102191234904).

Almost surely, 2^{1305748838605} is an apocalyptic number.

It is an amenable number.

1305748838605 is a deficient number, since it is larger than the sum of its proper divisors (329310919859).

1305748838605 is a wasteful number, since it uses less digits than its factorization.

1305748838605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243956.

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 1305748838605 in words is "one trillion, three hundred five billion, seven hundred forty-eight million, eight hundred thirty-eight thousand, six hundred five".