12800136634 has 8 divisors (see below), whose sum is σ = 19443245760. Its totient is φ = 6319054716.

The previous prime is 12800136611. The next prime is 12800136637. The reversal of 12800136634 is 43663100821.

It is a happy number.

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 12800136634.

It is not an unprimeable number, because it can be changed into a prime (12800136637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40506604 + ... + 40506919.

It is an arithmetic number, because the mean of its divisors is an integer number (2430405720).

Almost surely, 2^12800136634 is an apocalyptic number.

12800136634 is a deficient number, since it is larger than the sum of its proper divisors (6643109126).

12800136634 is an equidigital number, since it uses as much as digits as its factorization.

12800136634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81013604.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 12800136634 in words is "twelve billion, eight hundred million, one hundred thirty-six thousand, six hundred thirty-four".