13544252993 has 8 divisors (see below), whose sum is σ = 13712944896. Its totient is φ = 13375692400.

The previous prime is 13544252989. The next prime is 13544253029. The reversal of 13544252993 is 39925244531.

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 13544252993 - 2² = 13544252989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13544252593) 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, 183563 + ... + 246543.

It is an arithmetic number, because the mean of its divisors is an integer number (1714118112).

Almost surely, 2^13544252993 is an apocalyptic number.

It is an amenable number.

13544252993 is a deficient number, since it is larger than the sum of its proper divisors (168691903).

13544252993 is an equidigital number, since it uses as much as digits as its factorization.

13544252993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65655.

The product of its digits is 1166400, while the sum is 47.

The spelling of 13544252993 in words is "thirteen billion, five hundred forty-four million, two hundred fifty-two thousand, nine hundred ninety-three".