1385363433205 has 8 divisors (see below), whose sum is σ = 1662545345112. Its totient is φ = 1108217929728.

The previous prime is 1385363433197. The next prime is 1385363433229. The reversal of 1385363433205 is 5023343635831.

It can be written as a sum of positive squares in 4 ways, for example, as 21492146404 + 1363871286801 = 146602^2 + 1167849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1385363433205 - 2³ = 1385363433197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 9018324 + ... + 9170653.

It is an arithmetic number, because the mean of its divisors is an integer number (207818168139).

Almost surely, 2^{1385363433205} is an apocalyptic number.

It is an amenable number.

1385363433205 is a deficient number, since it is larger than the sum of its proper divisors (277181911907).

1385363433205 is a wasteful number, since it uses less digits than its factorization.

1385363433205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18204215.

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 1385363433205 in words is "one trillion, three hundred eighty-five billion, three hundred sixty-three million, four hundred thirty-three thousand, two hundred five".