15243058542 has 8 divisors (see below), whose sum is σ = 30486117096. Its totient is φ = 5081019512.

The previous prime is 15243058513. The next prime is 15243058549. The reversal of 15243058542 is 24585034251.

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

15243058542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 15243058542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15243058549) 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 3 ways as a sum of consecutive naturals, for example, 1270254873 + ... + 1270254884.

It is an arithmetic number, because the mean of its divisors is an integer number (3810764637).

Almost surely, 2^15243058542 is an apocalyptic number.

15243058542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15243058542 is a wasteful number, since it uses less digits than its factorization.

15243058542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540509762.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 15243058542 in words is "fifteen billion, two hundred forty-three million, fifty-eight thousand, five hundred forty-two".