12640001073 has 16 divisors (see below), whose sum is σ = 19306936320. Its totient is φ = 7205614416.

The previous prime is 12640001063. The next prime is 12640001089. The reversal of 12640001073 is 37010004621.

12640001073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12640001073 - 2²⁵ = 12606446641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12640001063) 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 15 ways as a sum of consecutive naturals, for example, 709465 + ... + 727062.

It is an arithmetic number, because the mean of its divisors is an integer number (1206683520).

Almost surely, 2^12640001073 is an apocalyptic number.

It is an amenable number.

12640001073 is a deficient number, since it is larger than the sum of its proper divisors (6666935247).

12640001073 is a wasteful number, since it uses less digits than its factorization.

12640001073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436956.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 12640001073 its reverse (37010004621), we get a palindrome (49650005694).

The spelling of 12640001073 in words is "twelve billion, six hundred forty million, one thousand, seventy-three".