12421615134462 has 48 divisors (see below), whose sum is σ = 25855157583360. Its totient is φ = 3978145226160.

The previous prime is 12421615134449. The next prime is 12421615134473. The reversal of 12421615134462 is 26443151612421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6947758 + ... + 8550705.

It is an arithmetic number, because the mean of its divisors is an integer number (538649116320).

Almost surely, 2^{12421615134462} is an apocalyptic number.

12421615134462 is an abundant number, since it is smaller than the sum of its proper divisors (13433542448898).

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

12421615134462 is a wasteful number, since it uses less digits than its factorization.

12421615134462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15498669 (or 15498638 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

Adding to 12421615134462 its reverse (26443151612421), we get a palindrome (38864766746883).

The spelling of 12421615134462 in words is "twelve trillion, four hundred twenty-one billion, six hundred fifteen million, one hundred thirty-four thousand, four hundred sixty-two".