12186747485 has 16 divisors (see below), whose sum is σ = 15973051392. Its totient is φ = 8852260800.

The previous prime is 12186747479. The next prime is 12186747523. The reversal of 12186747485 is 58474768121.

It is not a de Polignac number, because 12186747485 - 2²² = 12182553181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89789 + ... + 180098.

It is an arithmetic number, because the mean of its divisors is an integer number (998315712).

Almost surely, 2^12186747485 is an apocalyptic number.

It is an amenable number.

12186747485 is a deficient number, since it is larger than the sum of its proper divisors (3786303907).

12186747485 is a wasteful number, since it uses less digits than its factorization.

12186747485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270724.

The product of its digits is 3010560, while the sum is 53.

The spelling of 12186747485 in words is "twelve billion, one hundred eighty-six million, seven hundred forty-seven thousand, four hundred eighty-five".