12965940623 has 4 divisors (see below), whose sum is σ = 12972079008. Its totient is φ = 12959802240.

The previous prime is 12965940607. The next prime is 12965940641. The reversal of 12965940623 is 32604956921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12965940623 - 2⁴ = 12965940607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12965940643) 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, 3066023 + ... + 3070248.

It is an arithmetic number, because the mean of its divisors is an integer number (3243019752).

Almost surely, 2^12965940623 is an apocalyptic number.

12965940623 is a deficient number, since it is larger than the sum of its proper divisors (6138385).

12965940623 is an equidigital number, since it uses as much as digits as its factorization.

12965940623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138384.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 12965940623 in words is "twelve billion, nine hundred sixty-five million, nine hundred forty thousand, six hundred twenty-three".