12628814884 has 81 divisors (see below), whose sum is σ = 26952251697. Its totient is φ = 5162195808.

The previous prime is 12628814879. The next prime is 12628814893. The reversal of 12628814884 is 48841882621.

The square root of 12628814884 is 112378.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9269453284 + 3359361600 = 96278^2 + 57960^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36185542 + ... + 36185890.

Almost surely, 2^12628814884 is an apocalyptic number.

12628814884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12628814884 is the 112378-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12628814884

12628814884 is an abundant number, since it is smaller than the sum of its proper divisors (14323436813).

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

12628814884 is an equidigital number, since it uses as much as digits as its factorization.

12628814884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 381 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 52.

The spelling of 12628814884 in words is "twelve billion, six hundred twenty-eight million, eight hundred fourteen thousand, eight hundred eighty-four".