2421542325542 has 16 divisors (see below), whose sum is σ = 3670091731680. Its totient is φ = 1198205410752.

The previous prime is 2421542325481. The next prime is 2421542325563. The reversal of 2421542325542 is 2455232451242.

It is a self number, because there is not a number n which added to its sum of digits gives 2421542325542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6569063 + ... + 6927890.

It is an arithmetic number, because the mean of its divisors is an integer number (229380733230).

Almost surely, 2^{2421542325542} is an apocalyptic number.

2421542325542 is a deficient number, since it is larger than the sum of its proper divisors (1248549406138).

2421542325542 is a wasteful number, since it uses less digits than its factorization.

2421542325542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497887.

The product of its digits is 768000, while the sum is 41.

Adding to 2421542325542 its reverse (2455232451242), we get a palindrome (4876774776784).

The spelling of 2421542325542 in words is "two trillion, four hundred twenty-one billion, five hundred forty-two million, three hundred twenty-five thousand, five hundred forty-two".