12946909466089 has 8 divisors (see below), whose sum is σ = 13124453065640. Its totient is φ = 12769370966016.

The previous prime is 12946909466081. The next prime is 12946909466111. The reversal of 12946909466089 is 98066490964921.

It can be written as a sum of positive squares in 4 ways, for example, as 3473441056089 + 9473468410000 = 1863717^2 + 3077900^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12946909466089 - 2³ = 12946909466081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12946909466081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985489 + ... + 6463585.

It is an arithmetic number, because the mean of its divisors is an integer number (1640556633205).

Almost surely, 2^{12946909466089} is an apocalyptic number.

It is an amenable number.

12946909466089 is a deficient number, since it is larger than the sum of its proper divisors (177543599551).

12946909466089 is an equidigital number, since it uses as much as digits as its factorization.

12946909466089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549739.

The product of its (nonzero) digits is 362797056, while the sum is 73.

The spelling of 12946909466089 in words is "twelve trillion, nine hundred forty-six billion, nine hundred nine million, four hundred sixty-six thousand, eighty-nine".