12940881282 has 72 divisors (see below), whose sum is σ = 32711071536. Its totient is φ = 3686652144.

The previous prime is 12940881271. The next prime is 12940881293. The reversal of 12940881282 is 28218804921.

12940881282 is a `hidden beast` number, since 1 + 294 + 0 + 8 + 81 + 282 = 666.

It is an interprime number because it is at equal distance from previous prime (12940881271) and next prime (12940881293).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 284913 + ... + 327195.

It is an arithmetic number, because the mean of its divisors is an integer number (454320438).

Almost surely, 2^12940881282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12940881282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16355535768).

12940881282 is an abundant number, since it is smaller than the sum of its proper divisors (19770190254).

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

12940881282 is a wasteful number, since it uses less digits than its factorization.

12940881282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42652 (or 42642 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 12940881282 in words is "twelve billion, nine hundred forty million, eight hundred eighty-one thousand, two hundred eighty-two".