12461216256842 has 16 divisors (see below), whose sum is σ = 18839292014592. Its totient is φ = 6181453751760.

The previous prime is 12461216256833. The next prime is 12461216256851. The reversal of 12461216256842 is 24865261216421.

It is an interprime number because it is at equal distance from previous prime (12461216256833) and next prime (12461216256851).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18058808 + ... + 18736140.

It is an arithmetic number, because the mean of its divisors is an integer number (1177455750912).

Almost surely, 2^{12461216256842} is an apocalyptic number.

12461216256842 is a deficient number, since it is larger than the sum of its proper divisors (6378075757750).

12461216256842 is a wasteful number, since it uses less digits than its factorization.

12461216256842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749893.

The product of its digits is 2211840, while the sum is 50.

The spelling of 12461216256842 in words is "twelve trillion, four hundred sixty-one billion, two hundred sixteen million, two hundred fifty-six thousand, eight hundred forty-two".