15234342642 has 24 divisors (see below), whose sum is σ = 33548855340. Its totient is φ = 4994866080.

The previous prime is 15234342619. The next prime is 15234342661. The reversal of 15234342642 is 24624343251.

15234342642 is a `hidden beast` number, since 1 + 5 + 2 + 3 + 4 + 3 + 4 + 2 + 642 = 666.

15234342642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14881316121 + 353026521 = 121989^2 + 18789^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15234342597 and 15234342606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6936217 + ... + 6938412.

Almost surely, 2^15234342642 is an apocalyptic number.

15234342642 is an abundant number, since it is smaller than the sum of its proper divisors (18314512698).

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

15234342642 is a wasteful number, since it uses less digits than its factorization.

15234342642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13874698 (or 13874695 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 15234342642 its reverse (24624343251), we get a palindrome (39858685893).

The spelling of 15234342642 in words is "fifteen billion, two hundred thirty-four million, three hundred forty-two thousand, six hundred forty-two".