15142352545442 has 16 divisors (see below), whose sum is σ = 22757502873600. Its totient is φ = 7556518738080.

The previous prime is 15142352545409. The next prime is 15142352545471. The reversal of 15142352545442 is 24454525324151.

15142352545442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15142352545442² (a number of 27 digits) contains 22 as substring.

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, 119432159 + ... + 119558877.

It is an arithmetic number, because the mean of its divisors is an integer number (1422343929600).

Almost surely, 2^{15142352545442} is an apocalyptic number.

15142352545442 is a deficient number, since it is larger than the sum of its proper divisors (7615150328158).

15142352545442 is a wasteful number, since it uses less digits than its factorization.

15142352545442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241921.

The product of its digits is 3840000, while the sum is 47.

Adding to 15142352545442 its reverse (24454525324151), we get a palindrome (39596877869593).

The spelling of 15142352545442 in words is "fifteen trillion, one hundred forty-two billion, three hundred fifty-two million, five hundred forty-five thousand, four hundred forty-two".