12207678582 has 64 divisors (see below), whose sum is σ = 27816099840. Its totient is φ = 3535514400.

The previous prime is 12207678577. The next prime is 12207678589. The reversal of 12207678582 is 28587670221.

It is a super-2 number, since 2×12207678582² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12207678589) 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, 2382219 + ... + 2387337.

It is an arithmetic number, because the mean of its divisors is an integer number (434626560).

Almost surely, 2^12207678582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12207678582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13908049920).

12207678582 is an abundant number, since it is smaller than the sum of its proper divisors (15608421258).

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

12207678582 is a wasteful number, since it uses less digits than its factorization.

12207678582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6729.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 12207678582 in words is "twelve billion, two hundred seven million, six hundred seventy-eight thousand, five hundred eighty-two".