12942821280 has 192 divisors, whose sum is σ = 44782295040. Its totient is φ = 3127550976.

The previous prime is 12942821239. The next prime is 12942821317. The reversal of 12942821280 is 8212824921.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178909 + ... + 240611.

It is an arithmetic number, because the mean of its divisors is an integer number (233241120).

Almost surely, 2^12942821280 is an apocalyptic number.

12942821280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12942821280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22391147520).

12942821280 is an abundant number, since it is smaller than the sum of its proper divisors (31839473760).

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

12942821280 is a wasteful number, since it uses less digits than its factorization.

12942821280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61763 (or 61755 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 12942821280 in words is "twelve billion, nine hundred forty-two million, eight hundred twenty-one thousand, two hundred eighty".