13543442343542 has 32 divisors (see below), whose sum is σ = 20603541542400. Its totient is φ = 6676045782208.

The previous prime is 13543442343521. The next prime is 13543442343547. The reversal of 13543442343542 is 24534324434531.

It is a super-2 number, since 2×13543442343542² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13543442343547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752948273 + ... + 752966259.

It is an arithmetic number, because the mean of its divisors is an integer number (643860673200).

Almost surely, 2^{13543442343542} is an apocalyptic number.

13543442343542 is a deficient number, since it is larger than the sum of its proper divisors (7060099198858).

13543442343542 is a wasteful number, since it uses less digits than its factorization.

13543442343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30220.

The product of its digits is 8294400, while the sum is 47.

The spelling of 13543442343542 in words is "thirteen trillion, five hundred forty-three billion, four hundred forty-two million, three hundred forty-three thousand, five hundred forty-two".