13818501545 has 16 divisors (see below), whose sum is σ = 18213863040. Its totient is φ = 10017621504.

The previous prime is 13818501523. The next prime is 13818501577. The reversal of 13818501545 is 54510581831.

It is a cyclic number.

It is not a de Polignac number, because 13818501545 - 2³⁰ = 12744759721 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3159944 + ... + 3164313.

It is an arithmetic number, because the mean of its divisors is an integer number (1138366440).

Almost surely, 2^13818501545 is an apocalyptic number.

It is an amenable number.

13818501545 is a deficient number, since it is larger than the sum of its proper divisors (4395361495).

13818501545 is a wasteful number, since it uses less digits than its factorization.

13818501545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324304.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 13818501545 in words is "thirteen billion, eight hundred eighteen million, five hundred one thousand, five hundred forty-five".