12645838007 has 4 divisors (see below), whose sum is σ = 13795459656. Its totient is φ = 11496216360.

The previous prime is 12645837979. The next prime is 12645838013. The reversal of 12645838007 is 70083854621.

12645838007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12645838007 - 2⁸ = 12645837751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645838087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574810808 + ... + 574810829.

It is an arithmetic number, because the mean of its divisors is an integer number (3448864914).

Almost surely, 2^12645838007 is an apocalyptic number.

12645838007 is a deficient number, since it is larger than the sum of its proper divisors (1149621649).

12645838007 is a wasteful number, since it uses less digits than its factorization.

12645838007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149621648.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 12645838007 in words is "twelve billion, six hundred forty-five million, eight hundred thirty-eight thousand, seven".