12659965619 has 8 divisors (see below), whose sum is σ = 14520767328. Its totient is φ = 10812222720.

The previous prime is 12659965613. The next prime is 12659965627. The reversal of 12659965619 is 91656995621.

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 12659965619 - 2²⁴ = 12643188403 is a prime.

It is a super-2 number, since 2×12659965619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12659965613) 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, 3262622 + ... + 3266499.

It is an arithmetic number, because the mean of its divisors is an integer number (1815095916).

Almost surely, 2^12659965619 is an apocalyptic number.

12659965619 is a deficient number, since it is larger than the sum of its proper divisors (1860801709).

12659965619 is an equidigital number, since it uses as much as digits as its factorization.

12659965619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529405.

The product of its digits is 7873200, while the sum is 59.

The spelling of 12659965619 in words is "twelve billion, six hundred fifty-nine million, nine hundred sixty-five thousand, six hundred nineteen".