142643202447 has 16 divisors (see below), whose sum is σ = 190433102720. Its totient is φ = 94974444000.

The previous prime is 142643202439. The next prime is 142643202473. The reversal of 142643202447 is 744202346241.

It is not a de Polignac number, because 142643202447 - 2³ = 142643202439 is a prime.

It is a super-4 number, since 4×142643202447⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142643202347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19755804 + ... + 19763022.

It is an arithmetic number, because the mean of its divisors is an integer number (11902068920).

Almost surely, 2^142643202447 is an apocalyptic number.

142643202447 is a deficient number, since it is larger than the sum of its proper divisors (47789900273).

142643202447 is a wasteful number, since it uses less digits than its factorization.

142643202447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14694.

The product of its (nonzero) digits is 258048, while the sum is 39.

Adding to 142643202447 its reverse (744202346241), we get a palindrome (886845548688).

The spelling of 142643202447 in words is "one hundred forty-two billion, six hundred forty-three million, two hundred two thousand, four hundred forty-seven".