142421613401344 has 72 divisors (see below), whose sum is σ = 296720906005440. Its totient is φ = 68097758834688.

The previous prime is 142421613401341. The next prime is 142421613401351. The reversal of 142421613401344 is 443104316124241.

It is a junction number, because it is equal to n+sod(n) for n = 142421613401297 and 142421613401306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421613401341) 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 7 ways as a sum of consecutive naturals, for example, 20707692 + ... + 26714260.

It is an arithmetic number, because the mean of its divisors is an integer number (4121123694520).

Almost surely, 2^{142421613401344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142421613401344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148360453002720).

142421613401344 is an abundant number, since it is smaller than the sum of its proper divisors (154299292604096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142421613401344 is an equidigital number, since it uses as much as digits as its factorization.

142421613401344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010635 (or 6010621 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

Adding to 142421613401344 its reverse (443104316124241), we get a palindrome (585525929525585).

The spelling of 142421613401344 in words is "one hundred forty-two trillion, four hundred twenty-one billion, six hundred thirteen million, four hundred one thousand, three hundred forty-four".