13504885613823 has 16 divisors (see below), whose sum is σ = 18055695802496. Its totient is φ = 8978668676640.

The previous prime is 13504885613777. The next prime is 13504885613833. The reversal of 13504885613823 is 32831658840531.

It is not a de Polignac number, because 13504885613823 - 2⁶ = 13504885613759 is a prime.

It is a super-3 number, since 3×13504885613823³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13504885613833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22770936 + ... + 23356482.

It is an arithmetic number, because the mean of its divisors is an integer number (1128480987656).

Almost surely, 2^{13504885613823} is an apocalyptic number.

13504885613823 is a deficient number, since it is larger than the sum of its proper divisors (4550810188673).

13504885613823 is a wasteful number, since it uses less digits than its factorization.

13504885613823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606534.

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 13504885613823 in words is "thirteen trillion, five hundred four billion, eight hundred eighty-five million, six hundred thirteen thousand, eight hundred twenty-three".