13548043481 has 4 divisors (see below), whose sum is σ = 15483478272. Its totient is φ = 11612608692.

The previous prime is 13548043471. The next prime is 13548043511. The reversal of 13548043481 is 18434084531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18434084531 = 85793 ⋅214867.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13548043481 is a prime.

It is a super-2 number, since 2×13548043481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13548043471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967717385 + ... + 967717398.

It is an arithmetic number, because the mean of its divisors is an integer number (3870869568).

Almost surely, 2^13548043481 is an apocalyptic number.

It is an amenable number.

13548043481 is a deficient number, since it is larger than the sum of its proper divisors (1935434791).

13548043481 is an equidigital number, since it uses as much as digits as its factorization.

13548043481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935434790.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 13548043481 in words is "thirteen billion, five hundred forty-eight million, forty-three thousand, four hundred eighty-one".