12688304770 has 8 divisors (see below), whose sum is σ = 22838948604. Its totient is φ = 5075321904.

The previous prime is 12688304749. The next prime is 12688304777. The reversal of 12688304770 is 7740388621.

It can be written as a sum of positive squares in 2 ways, for example, as 12611514601 + 76790169 = 112301^2 + 8763^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12688304770.

It is not an unprimeable number, because it can be changed into a prime (12688304777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634415229 + ... + 634415248.

Almost surely, 2^12688304770 is an apocalyptic number.

12688304770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12688304770 is a deficient number, since it is larger than the sum of its proper divisors (10150643834).

12688304770 is a wasteful number, since it uses less digits than its factorization.

12688304770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268830484.

The product of its (nonzero) digits is 451584, while the sum is 46.

It can be divided in two parts, 1268 and 8304770, that added together give a palindrome (8306038).

The spelling of 12688304770 in words is "twelve billion, six hundred eighty-eight million, three hundred four thousand, seven hundred seventy".