12123963647568 has 120 divisors (see below), whose sum is σ = 35720078128800. Its totient is φ = 3828189641472.

The previous prime is 12123963647563. The next prime is 12123963647617. The reversal of 12123963647568 is 86574636932121.

12123963647568 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 9 + 6 + 3 + 64 + 7 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123963647563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24540846 + ... + 25030002.

It is an arithmetic number, because the mean of its divisors is an integer number (297667317740).

Almost surely, 2^{12123963647568} is an apocalyptic number.

12123963647568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12123963647568 is an abundant number, since it is smaller than the sum of its proper divisors (23596114481232).

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

12123963647568 is a wasteful number, since it uses less digits than its factorization.

12123963647568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498249 (or 498240 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 12123963647568 in words is "twelve trillion, one hundred twenty-three billion, nine hundred sixty-three million, six hundred forty-seven thousand, five hundred sixty-eight".