12609436867 has 8 divisors (see below), whose sum is σ = 12953307456. Its totient is φ = 12265728192.

The previous prime is 12609436817. The next prime is 12609436907. The reversal of 12609436867 is 76863490621.

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 12609436867 - 2¹¹ = 12609434819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12609436817) 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, 126678 + ... + 203140.

It is an arithmetic number, because the mean of its divisors is an integer number (1619163432).

Almost surely, 2^12609436867 is an apocalyptic number.

12609436867 is a deficient number, since it is larger than the sum of its proper divisors (343870589).

12609436867 is an equidigital number, since it uses as much as digits as its factorization.

12609436867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80957.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 12609436867 in words is "twelve billion, six hundred nine million, four hundred thirty-six thousand, eight hundred sixty-seven".