12965200345709 has 4 divisors (see below), whose sum is σ = 13058475168480. Its totient is φ = 12871925522940.

The previous prime is 12965200345703. The next prime is 12965200345751. The reversal of 12965200345709 is 90754300256921.

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 a cyclic number.

It is not a de Polignac number, because 12965200345709 - 2¹⁶ = 12965200280173 is a prime.

It is a super-2 number, since 2×12965200345709² (a number of 27 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 (12965200345703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46637411177 + ... + 46637411454.

It is an arithmetic number, because the mean of its divisors is an integer number (3264618792120).

Almost surely, 2^{12965200345709} is an apocalyptic number.

It is an amenable number.

12965200345709 is a deficient number, since it is larger than the sum of its proper divisors (93274822771).

12965200345709 is an equidigital number, since it uses as much as digits as its factorization.

12965200345709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93274822770.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 12965200345709 in words is "twelve trillion, nine hundred sixty-five billion, two hundred million, three hundred forty-five thousand, seven hundred nine".