15243555042 has 24 divisors (see below), whose sum is σ = 34093113600. Its totient is φ = 4917275640.

The previous prime is 15243555031. The next prime is 15243555077. The reversal of 15243555042 is 24055534251.

15243555042 is a `hidden beast` number, since 15 + 24 + 35 + 550 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15243554988 and 15243555006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13658542 + ... + 13659657.

It is an arithmetic number, because the mean of its divisors is an integer number (1420546400).

Almost surely, 2^15243555042 is an apocalyptic number.

15243555042 is an abundant number, since it is smaller than the sum of its proper divisors (18849558558).

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

15243555042 is a wasteful number, since it uses less digits than its factorization.

15243555042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27318238 (or 27318235 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 15243555042 in words is "fifteen billion, two hundred forty-three million, five hundred fifty-five thousand, forty-two".