12605072479 has 4 divisors (see below), whose sum is σ = 12682404376. Its totient is φ = 12527740584.

The previous prime is 12605072477. The next prime is 12605072483. The reversal of 12605072479 is 97427050621.

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 12605072479 - 2¹ = 12605072477 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 (12605072477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38665704 + ... + 38666029.

It is an arithmetic number, because the mean of its divisors is an integer number (3170601094).

Almost surely, 2^12605072479 is an apocalyptic number.

12605072479 is a deficient number, since it is larger than the sum of its proper divisors (77331897).

12605072479 is an equidigital number, since it uses as much as digits as its factorization.

12605072479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77331896.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 12605072479 in words is "twelve billion, six hundred five million, seventy-two thousand, four hundred seventy-nine".