12940974684 has 108 divisors (see below), whose sum is σ = 36076912872. Its totient is φ = 3908329920.

The previous prime is 12940974667. The next prime is 12940974691. The reversal of 12940974684 is 48647904921.

12940974684 is a `hidden beast` number, since 1 + 2 + 94 + 0 + 97 + 468 + 4 = 666.

12940974684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12940974684.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1332454 + ... + 1342130.

Almost surely, 2^12940974684 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 12940974684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18038456436).

12940974684 is an abundant number, since it is smaller than the sum of its proper divisors (23135938188).

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

12940974684 is a wasteful number, since it uses less digits than its factorization.

12940974684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016 (or 10000 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 12940974684 in words is "twelve billion, nine hundred forty million, nine hundred seventy-four thousand, six hundred eighty-four".