13538544472 has 32 divisors (see below), whose sum is σ = 25932067920. Its totient is φ = 6624455040.

The previous prime is 13538544433. The next prime is 13538544479. The reversal of 13538544472 is 27444583531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13538544479) 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 7 ways as a sum of consecutive naturals, for example, 25723 + ... + 166549.

Almost surely, 2^13538544472 is an apocalyptic number.

It is an amenable number.

13538544472 is a deficient number, since it is larger than the sum of its proper divisors (12393523448).

13538544472 is a wasteful number, since it uses less digits than its factorization.

13538544472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141091 (or 141087 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 46.

The spelling of 13538544472 in words is "thirteen billion, five hundred thirty-eight million, five hundred forty-four thousand, four hundred seventy-two".