12651268469009 has 4 divisors (see below), whose sum is σ = 13317124704240. Its totient is φ = 11985412233780.

The previous prime is 12651268468999. The next prime is 12651268469069. The reversal of 12651268469009 is 90096486215621.

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 a cyclic number.

It is not a de Polignac number, because 12651268469009 - 2²⁰ = 12651267420433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12651268469069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332928117587 + ... + 332928117624.

It is an arithmetic number, because the mean of its divisors is an integer number (3329281176060).

Almost surely, 2^{12651268469009} is an apocalyptic number.

12651268469009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12651268469009 is a deficient number, since it is larger than the sum of its proper divisors (665856235231).

12651268469009 is an equidigital number, since it uses as much as digits as its factorization.

12651268469009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665856235230.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 12651268469009 in words is "twelve trillion, six hundred fifty-one billion, two hundred sixty-eight million, four hundred sixty-nine thousand, nine".