12604613985 has 64 divisors (see below), whose sum is σ = 23703206400. Its totient is φ = 6341981184.

The previous prime is 12604613929. The next prime is 12604614047. The reversal of 12604613985 is 58931640621.

12604613985 is a `hidden beast` number, since 1 + 2 + 604 + 6 + 1 + 39 + 8 + 5 = 666.

It is not a de Polignac number, because 12604613985 - 2¹⁰ = 12604612961 is a prime.

It is a super-3 number, since 3×12604613985³ (a number of 31 digits) contains 333 as substring.

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 12604613985.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198861 + ... + 254469.

It is an arithmetic number, because the mean of its divisors is an integer number (370362600).

Almost surely, 2^12604613985 is an apocalyptic number.

12604613985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12604613985 is a deficient number, since it is larger than the sum of its proper divisors (11098592415).

12604613985 is a wasteful number, since it uses less digits than its factorization.

12604613985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55719 (or 55713 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 12604613985 in words is "twelve billion, six hundred four million, six hundred thirteen thousand, nine hundred eighty-five".