13530544542 has 48 divisors (see below), whose sum is σ = 29819501712. Its totient is φ = 4433045760.

The previous prime is 13530544483. The next prime is 13530544543. The reversal of 13530544542 is 24544503531.

13530544542 is a `hidden beast` number, since 1 + 35 + 30 + 54 + 4 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13530544497 and 13530544506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530544543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543798 + ... + 568134.

It is an arithmetic number, because the mean of its divisors is an integer number (621239619).

Almost surely, 2^13530544542 is an apocalyptic number.

13530544542 is an abundant number, since it is smaller than the sum of its proper divisors (16288957170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13530544542 is a wasteful number, since it uses less digits than its factorization.

13530544542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24873 (or 24870 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 13530544542 in words is "thirteen billion, five hundred thirty million, five hundred forty-four thousand, five hundred forty-two".