12644426034 has 24 divisors (see below), whose sum is σ = 27398628972. Its totient is φ = 4214443680.

The previous prime is 12644426029. The next prime is 12644426051. The reversal of 12644426034 is 43062444621.

12644426034 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 4 + 42 + 603 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8045551809 + 4598874225 = 89697^2 + 67815^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12644426034.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256204 + ... + 301544.

Almost surely, 2^12644426034 is an apocalyptic number.

12644426034 is an abundant number, since it is smaller than the sum of its proper divisors (14754202938).

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

12644426034 is a wasteful number, since it uses less digits than its factorization.

12644426034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60842 (or 60839 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 12644426034 in words is "twelve billion, six hundred forty-four million, four hundred twenty-six thousand, thirty-four".