13500921443859 has 6 divisors (see below), whose sum is σ = 19501330974476. Its totient is φ = 9000614295900.

The previous prime is 13500921443851. The next prime is 13500921443879. The reversal of 13500921443859 is 95834412900531.

13500921443859 is a `hidden beast` number, since 1 + 3 + 500 + 9 + 2 + 14 + 43 + 85 + 9 = 666.

It is not a de Polignac number, because 13500921443859 - 2³ = 13500921443851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13500921443851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750051191317 + ... + 750051191334.

Almost surely, 2^{13500921443859} is an apocalyptic number.

13500921443859 is a deficient number, since it is larger than the sum of its proper divisors (6000409530617).

13500921443859 is a wasteful number, since it uses less digits than its factorization.

13500921443859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500102382657 (or 1500102382654 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 13500921443859 in words is "thirteen trillion, five hundred billion, nine hundred twenty-one million, four hundred forty-three thousand, eight hundred fifty-nine".