11533349239721 has 8 divisors (see below), whose sum is σ = 11621621140800. Its totient is φ = 11445080839920.

The previous prime is 11533349239679. The next prime is 11533349239747. The reversal of 11533349239721 is 12793294333511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11533349239721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11533349232721) 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, 5940260 + ... + 7638938.

It is an arithmetic number, because the mean of its divisors is an integer number (1452702642600).

Almost surely, 2^{11533349239721} is an apocalyptic number.

It is an amenable number.

11533349239721 is a deficient number, since it is larger than the sum of its proper divisors (88271901079).

11533349239721 is a wasteful number, since it uses less digits than its factorization.

11533349239721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750639.

The product of its digits is 3674160, while the sum is 53.

The spelling of 11533349239721 in words is "eleven trillion, five hundred thirty-three billion, three hundred forty-nine million, two hundred thirty-nine thousand, seven hundred twenty-one".