12609212807 has 4 divisors (see below), whose sum is σ = 12610757040. Its totient is φ = 12607668576.

The previous prime is 12609212773. The next prime is 12609212843. The reversal of 12609212807 is 70821290621.

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 12609212807 - 2²⁴ = 12592435591 is a prime.

It is a super-2 number, since 2×12609212807² (a number of 21 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 (12609212867) 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, 759803 + ... + 776220.

It is an arithmetic number, because the mean of its divisors is an integer number (3152689260).

Almost surely, 2^12609212807 is an apocalyptic number.

12609212807 is a deficient number, since it is larger than the sum of its proper divisors (1544233).

12609212807 is an equidigital number, since it uses as much as digits as its factorization.

12609212807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544232.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 12609212807 in words is "twelve billion, six hundred nine million, two hundred twelve thousand, eight hundred seven".