12881286630 has 96 divisors (see below), whose sum is σ = 34986186144. Its totient is φ = 3409848576.

The previous prime is 12881286623. The next prime is 12881286647. The reversal of 12881286630 is 3668218821.

12881286630 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 1 + 2 + 8 + 6 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313564 + ... + 352256.

It is an arithmetic number, because the mean of its divisors is an integer number (364439439).

Almost surely, 2^12881286630 is an apocalyptic number.

12881286630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12881286630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17493093072).

12881286630 is an abundant number, since it is smaller than the sum of its proper divisors (22104899514).

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

12881286630 is a wasteful number, since it uses less digits than its factorization.

12881286630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38852 (or 38840 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 12881286630 in words is "twelve billion, eight hundred eighty-one million, two hundred eighty-six thousand, six hundred thirty".