15342240535543 has 2 divisors, whose sum is σ = 15342240535544. Its totient is φ = 15342240535542.

The previous prime is 15342240535529. The next prime is 15342240535597. The reversal of 15342240535543 is 34553504224351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15342240535543 - 2³³ = 15333650600951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15342240535493 and 15342240535502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15342240539543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7671120267771 + 7671120267772.

It is an arithmetic number, because the mean of its divisors is an integer number (7671120267772).

Almost surely, 2^{15342240535543} is an apocalyptic number.

15342240535543 is a deficient number, since it is larger than the sum of its proper divisors (1).

15342240535543 is an equidigital number, since it uses as much as digits as its factorization.

15342240535543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320000, while the sum is 46.

Adding to 15342240535543 its reverse (34553504224351), we get a palindrome (49895744759894).

The spelling of 15342240535543 in words is "fifteen trillion, three hundred forty-two billion, two hundred forty million, five hundred thirty-five thousand, five hundred forty-three".