12634663896 has 96 divisors (see below), whose sum is σ = 34614328320. Its totient is φ = 4163140800.

The previous prime is 12634663889. The next prime is 12634663901. The reversal of 12634663896 is 69836643621.

12634663896 is a `hidden beast` number, since 1 + 2 + 63 + 466 + 38 + 96 = 666.

It is a nude number because it is divisible by every one of its digits.

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, 2553601 + ... + 2558543.

It is an arithmetic number, because the mean of its divisors is an integer number (360565920).

Almost surely, 2^12634663896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12634663896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17307164160).

12634663896 is an abundant number, since it is smaller than the sum of its proper divisors (21979664424).

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

12634663896 is a wasteful number, since it uses less digits than its factorization.

12634663896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357 (or 5350 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 54.

The spelling of 12634663896 in words is "twelve billion, six hundred thirty-four million, six hundred sixty-three thousand, eight hundred ninety-six".