15243562518042 has 16 divisors (see below), whose sum is σ = 30487582825920. Its totient is φ = 5081111207712.

The previous prime is 15243562517969. The next prime is 15243562518059. The reversal of 15243562518042 is 24081526534251.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15243562517982 and 15243562518000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18640942 + ... + 19441497.

It is an arithmetic number, because the mean of its divisors is an integer number (1905473926620).

Almost surely, 2^{15243562518042} is an apocalyptic number.

15243562518042 is an abundant number, since it is smaller than the sum of its proper divisors (15244020307878).

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

15243562518042 is a wasteful number, since it uses less digits than its factorization.

15243562518042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38149157.

The product of its (nonzero) digits is 2304000, while the sum is 48.

The spelling of 15243562518042 in words is "fifteen trillion, two hundred forty-three billion, five hundred sixty-two million, five hundred eighteen thousand, forty-two".