13281818542 has 8 divisors (see below), whose sum is σ = 19972411632. Its totient is φ = 6624348000.

The previous prime is 13281818527. The next prime is 13281818549. The reversal of 13281818542 is 24581818231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281818549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8279634 + ... + 8281237.

It is an arithmetic number, because the mean of its divisors is an integer number (2496551454).

Almost surely, 2^13281818542 is an apocalyptic number.

13281818542 is a deficient number, since it is larger than the sum of its proper divisors (6690593090).

13281818542 is a wasteful number, since it uses less digits than its factorization.

13281818542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16561274.

The product of its digits is 122880, while the sum is 43.

The spelling of 13281818542 in words is "thirteen billion, two hundred eighty-one million, eight hundred eighteen thousand, five hundred forty-two".