12335556778 has 8 divisors (see below), whose sum is σ = 18726267168. Its totient is φ = 6093467724.

The previous prime is 12335556773. The next prime is 12335556829. The reversal of 12335556778 is 87765553321.

12335556778 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 a super-2 number, since 2×12335556778² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12335556773) 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, 37155126 + ... + 37155457.

It is an arithmetic number, because the mean of its divisors is an integer number (2340783396).

Almost surely, 2^12335556778 is an apocalyptic number.

12335556778 is a deficient number, since it is larger than the sum of its proper divisors (6390710390).

12335556778 is an equidigital number, since it uses as much as digits as its factorization.

12335556778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74310668.

The product of its digits is 5292000, while the sum is 52.

The spelling of 12335556778 in words is "twelve billion, three hundred thirty-five million, five hundred fifty-six thousand, seven hundred seventy-eight".