12117787068 has 48 divisors (see below), whose sum is σ = 30052028160. Its totient is φ = 3787186944.

The previous prime is 12117787063. The next prime is 12117787081. The reversal of 12117787068 is 86078771121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117787063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59278 + ... + 166581.

It is an arithmetic number, because the mean of its divisors is an integer number (626083920).

Almost surely, 2^12117787068 is an apocalyptic number.

It is an amenable number.

12117787068 is an abundant number, since it is smaller than the sum of its proper divisors (17934241092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12117787068 is a wasteful number, since it uses less digits than its factorization.

12117787068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226146 (or 226144 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 48.

The spelling of 12117787068 in words is "twelve billion, one hundred seventeen million, seven hundred eighty-seven thousand, sixty-eight".