12634464444 has 96 divisors (see below), whose sum is σ = 34876047360. Its totient is φ = 3484518912.

The previous prime is 12634464421. The next prime is 12634464457. The reversal of 12634464444 is 44446443621.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is a junction number, because it is equal to n+sod(n) for n = 12634464396 and 12634464405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378712 + ... + 410720.

It is an arithmetic number, because the mean of its divisors is an integer number (363292160).

Almost surely, 2^12634464444 is an apocalyptic number.

12634464444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12634464444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17438023680).

12634464444 is an abundant number, since it is smaller than the sum of its proper divisors (22241582916).

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

12634464444 is a wasteful number, since it uses less digits than its factorization.

12634464444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32187 (or 32185 counting only the distinct ones).

The product of its digits is 884736, while the sum is 42.

The spelling of 12634464444 in words is "twelve billion, six hundred thirty-four million, four hundred sixty-four thousand, four hundred forty-four".