12653664069 has 4 divisors (see below), whose sum is σ = 16871552096. Its totient is φ = 8435776044.

The previous prime is 12653664059. The next prime is 12653664071. The reversal of 12653664069 is 96046635621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12653664069 - 2⁴ = 12653664053 is a prime.

It is a super-2 number, since 2×12653664069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653664029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108944009 + ... + 2108944014.

It is an arithmetic number, because the mean of its divisors is an integer number (4217888024).

Almost surely, 2^12653664069 is an apocalyptic number.

It is an amenable number.

12653664069 is a deficient number, since it is larger than the sum of its proper divisors (4217888027).

12653664069 is an equidigital number, since it uses as much as digits as its factorization.

12653664069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217888026.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 12653664069 in words is "twelve billion, six hundred fifty-three million, six hundred sixty-four thousand, sixty-nine".