13504367248921 has 32 divisors (see below), whose sum is σ = 14640048230400. Its totient is φ = 12425121650304.

The previous prime is 13504367248811. The next prime is 13504367248951. The reversal of 13504367248921 is 12984276340531.

It is not a de Polignac number, because 13504367248921 - 2⁹ = 13504367248409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13504367248951) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 22030030 + ... + 22634728.

It is an arithmetic number, because the mean of its divisors is an integer number (457501507200).

It is a 1-persistent number, because it is pandigital, but 2⋅13504367248921 = 27008734497842 is not.

Almost surely, 2^{13504367248921} is an apocalyptic number.

It is an amenable number.

13504367248921 is a deficient number, since it is larger than the sum of its proper divisors (1135680981479).

13504367248921 is a wasteful number, since it uses less digits than its factorization.

13504367248921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605125.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 13504367248921 in words is "thirteen trillion, five hundred four billion, three hundred sixty-seven million, two hundred forty-eight thousand, nine hundred twenty-one".