12489574464 has 112 divisors (see below), whose sum is σ = 36753393600. Its totient is φ = 4159070208.

The previous prime is 12489574451. The next prime is 12489574481. The reversal of 12489574464 is 46447598421.

12489574464 is a `hidden beast` number, since 1 + 2 + 4 + 8 + 9 + 574 + 4 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 12489574464.

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, 2100007 + ... + 2105945.

It is an arithmetic number, because the mean of its divisors is an integer number (328155300).

Almost surely, 2^12489574464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12489574464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18376696800).

12489574464 is an abundant number, since it is smaller than the sum of its proper divisors (24263819136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12489574464 is a wasteful number, since it uses less digits than its factorization.

12489574464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177 (or 7161 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 12489574464 in words is "twelve billion, four hundred eighty-nine million, five hundred seventy-four thousand, four hundred sixty-four".