12609604485 has 24 divisors (see below), whose sum is σ = 22561703424. Its totient is φ = 6508182240.

The previous prime is 12609604471. The next prime is 12609604487. The reversal of 12609604485 is 58440690621.

It is not a de Polignac number, because 12609604485 - 2⁵ = 12609604453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12609604485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609604487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4518177 + ... + 4520966.

It is an arithmetic number, because the mean of its divisors is an integer number (940070976).

Almost surely, 2^12609604485 is an apocalyptic number.

12609604485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12609604485 is a deficient number, since it is larger than the sum of its proper divisors (9952098939).

12609604485 is a wasteful number, since it uses less digits than its factorization.

12609604485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039185 (or 9039182 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 12609604485 in words is "twelve billion, six hundred nine million, six hundred four thousand, four hundred eighty-five".