13033538745721 has 8 divisors (see below), whose sum is σ = 14774861736320. Its totient is φ = 11397750481872.

The previous prime is 13033538745719. The next prime is 13033538745737. The reversal of 13033538745721 is 12754783533031.

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 13033538745721 - 2¹ = 13033538745719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13033538740721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26383681425 + ... + 26383681918.

It is an arithmetic number, because the mean of its divisors is an integer number (1846857717040).

Almost surely, 2^{13033538745721} is an apocalyptic number.

It is an amenable number.

13033538745721 is a deficient number, since it is larger than the sum of its proper divisors (1741322990599).

13033538745721 is a wasteful number, since it uses less digits than its factorization.

13033538745721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52767363375.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 13033538745721 in words is "thirteen trillion, thirty-three billion, five hundred thirty-eight million, seven hundred forty-five thousand, seven hundred twenty-one".