12306936778 has 16 divisors (see below), whose sum is σ = 18687098880. Its totient is φ = 6078327696.

The previous prime is 12306936773. The next prime is 12306936787. The reversal of 12306936778 is 87763960321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12306936773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47626 + ... + 163957.

It is an arithmetic number, because the mean of its divisors is an integer number (1167943680).

Almost surely, 2^12306936778 is an apocalyptic number.

12306936778 is a deficient number, since it is larger than the sum of its proper divisors (6380162102).

12306936778 is a wasteful number, since it uses less digits than its factorization.

12306936778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211941.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 12306936778 in words is "twelve billion, three hundred six million, nine hundred thirty-six thousand, seven hundred seventy-eight".