13203985852945 has 8 divisors (see below), whose sum is σ = 15859226770344. Its totient is φ = 10553559517824.

The previous prime is 13203985852933. The next prime is 13203985853033. The reversal of 13203985852945 is 54925858930231.

It can be written as a sum of positive squares in 4 ways, for example, as 147969470224 + 13056016382721 = 384668^2 + 3613311^2 .

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 13203985852945 - 2⁷ = 13203985852817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203639534 + ... + 1203650503.

It is an arithmetic number, because the mean of its divisors is an integer number (1982403346293).

Almost surely, 2^{13203985852945} is an apocalyptic number.

It is an amenable number.

13203985852945 is a deficient number, since it is larger than the sum of its proper divisors (2655240917399).

13203985852945 is a wasteful number, since it uses less digits than its factorization.

13203985852945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407291139.

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 13203985852945 in words is "thirteen trillion, two hundred three billion, nine hundred eighty-five million, eight hundred fifty-two thousand, nine hundred forty-five".