12617970388 has 6 divisors (see below), whose sum is σ = 22081448186. Its totient is φ = 6308985192.

The previous prime is 12617970373. The next prime is 12617970413. The reversal of 12617970388 is 88307971621.

12617970388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10826818704 + 1791151684 = 104052^2 + 42322^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577246295 + ... + 1577246302.

Almost surely, 2^12617970388 is an apocalyptic number.

It is an amenable number.

12617970388 is a deficient number, since it is larger than the sum of its proper divisors (9463477798).

12617970388 is a wasteful number, since it uses less digits than its factorization.

12617970388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154492601 (or 3154492599 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 12617970388 in words is "twelve billion, six hundred seventeen million, nine hundred seventy thousand, three hundred eighty-eight".