12447913885 has 32 divisors (see below), whose sum is σ = 16749441792. Its totient is φ = 8801210880.

The previous prime is 12447913883. The next prime is 12447913913. The reversal of 12447913885 is 58831974421.

It is not a de Polignac number, because 12447913885 - 2¹ = 12447913883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447913883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4673064 + ... + 4675726.

It is an arithmetic number, because the mean of its divisors is an integer number (523420056).

Almost surely, 2^12447913885 is an apocalyptic number.

It is an amenable number.

12447913885 is a deficient number, since it is larger than the sum of its proper divisors (4301527907).

12447913885 is a wasteful number, since it uses less digits than its factorization.

12447913885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013.

The product of its digits is 1935360, while the sum is 52.

The spelling of 12447913885 in words is "twelve billion, four hundred forty-seven million, nine hundred thirteen thousand, eight hundred eighty-five".