12643731626141 has 48 divisors (see below), whose sum is σ = 16628197155840. Its totient is φ = 9495440680320.

The previous prime is 12643731626087. The next prime is 12643731626143. The reversal of 12643731626141 is 14162613734621.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12643731626141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643731626143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7980356 + ... + 9432578.

It is an arithmetic number, because the mean of its divisors is an integer number (346420774080).

Almost surely, 2^{12643731626141} is an apocalyptic number.

12643731626141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12643731626141 is a deficient number, since it is larger than the sum of its proper divisors (3984465529699).

12643731626141 is a wasteful number, since it uses less digits than its factorization.

12643731626141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452834 (or 1452827 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The spelling of 12643731626141 in words is "twelve trillion, six hundred forty-three billion, seven hundred thirty-one million, six hundred twenty-six thousand, one hundred forty-one".