12648063546 has 32 divisors (see below), whose sum is σ = 29760151680. Its totient is φ = 3968019648.

The previous prime is 12648063541. The next prime is 12648063569. The reversal of 12648063546 is 64536084621.

12648063546 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 8 + 0 + 635 + 4 + 6 = 666.

It is a super-2 number, since 2×12648063546² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12648063541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6888006 + ... + 6889841.

It is an arithmetic number, because the mean of its divisors is an integer number (930004740).

Almost surely, 2^12648063546 is an apocalyptic number.

12648063546 is an abundant number, since it is smaller than the sum of its proper divisors (17112088134).

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

12648063546 is a wasteful number, since it uses less digits than its factorization.

12648063546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777875 (or 13777869 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 12648063546 in words is "twelve billion, six hundred forty-eight million, sixty-three thousand, five hundred forty-six".