142421602552643 has 4 divisors (see below), whose sum is σ = 144137525475048. Its totient is φ = 140705679630240.

The previous prime is 142421602552631. The next prime is 142421602552687. The reversal of 142421602552643 is 346255206124241.

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

It is a cyclic number.

It is not a de Polignac number, because 142421602552643 - 2¹⁰ = 142421602551619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142421602552043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857961461078 + ... + 857961461243.

It is an arithmetic number, because the mean of its divisors is an integer number (36034381368762).

Almost surely, 2^{142421602552643} is an apocalyptic number.

142421602552643 is a deficient number, since it is larger than the sum of its proper divisors (1715922922405).

142421602552643 is an equidigital number, since it uses as much as digits as its factorization.

142421602552643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715922922404.

The product of its (nonzero) digits is 2764800, while the sum is 47.

Adding to 142421602552643 its reverse (346255206124241), we get a palindrome (488676808676884).

The spelling of 142421602552643 in words is "one hundred forty-two trillion, four hundred twenty-one billion, six hundred two million, five hundred fifty-two thousand, six hundred forty-three".