142464224642 has 4 divisors (see below), whose sum is σ = 213696336966. Its totient is φ = 71232112320.

The previous prime is 142464224611. The next prime is 142464224657. The reversal of 142464224642 is 246422464241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125655361441 + 16808863201 = 354479^2 + 129649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142464224642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35616056159 + ... + 35616056162.

Almost surely, 2^142464224642 is an apocalyptic number.

142464224642 is a deficient number, since it is larger than the sum of its proper divisors (71232112324).

142464224642 is an equidigital number, since it uses as much as digits as its factorization.

142464224642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71232112323.

The product of its digits is 589824, while the sum is 41.

Adding to 142464224642 its reverse (246422464241), we get a palindrome (388886688883).

The spelling of 142464224642 in words is "one hundred forty-two billion, four hundred sixty-four million, two hundred twenty-four thousand, six hundred forty-two".