7543993142 has 16 divisors (see below), whose sum is σ = 12993856512. Its totient is φ = 3217815720.

The previous prime is 7543993141. The next prime is 7543993147. The reversal of 7543993142 is 2413993457.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7543993141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273958 + ... + 1279865.

It is an arithmetic number, because the mean of its divisors is an integer number (812116032).

Almost surely, 2^7543993142 is an apocalyptic number.

7543993142 is a deficient number, since it is larger than the sum of its proper divisors (5449863370).

7543993142 is a wasteful number, since it uses less digits than its factorization.

7543993142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554043.

The product of its digits is 816480, while the sum is 47.

The square root of 7543993142 is about 86856.1635233793. The cubic root of 7543993142 is about 1961.2536355520.

The spelling of 7543993142 in words is "seven billion, five hundred forty-three million, nine hundred ninety-three thousand, one hundred forty-two".