12582986988 has 144 divisors (see below), whose sum is σ = 34915896288. Its totient is φ = 3503385600.

The previous prime is 12582986903. The next prime is 12582986989. The reversal of 12582986988 is 88968928521.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (12582986989) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4396678 + ... + 4399538.

It is an arithmetic number, because the mean of its divisors is an integer number (242471502).

Almost surely, 2^12582986988 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 12582986988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17457948144).

12582986988 is an abundant number, since it is smaller than the sum of its proper divisors (22332909300).

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

12582986988 is a wasteful number, since it uses less digits than its factorization.

12582986988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136 (or 3123 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 66.

The spelling of 12582986988 in words is "twelve billion, five hundred eighty-two million, nine hundred eighty-six thousand, nine hundred eighty-eight".