12635085778 has 8 divisors (see below), whose sum is σ = 21660147072. Its totient is φ = 5415036756.

The previous prime is 12635085769. The next prime is 12635085779. The reversal of 12635085778 is 87758053621.

It is a happy number.

12635085778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12635085779) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 451253050 + ... + 451253077.

It is an arithmetic number, because the mean of its divisors is an integer number (2707518384).

Almost surely, 2^12635085778 is an apocalyptic number.

12635085778 is a deficient number, since it is larger than the sum of its proper divisors (9025061294).

12635085778 is an equidigital number, since it uses as much as digits as its factorization.

12635085778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902506136.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 12635085778 in words is "twelve billion, six hundred thirty-five million, eighty-five thousand, seven hundred seventy-eight".