12115388712786 has 32 divisors (see below), whose sum is σ = 24437298751488. Its totient is φ = 4004083641600.

The previous prime is 12115388712781. The next prime is 12115388712803. The reversal of 12115388712786 is 68721788351121.

It is not an unprimeable number, because it can be changed into a prime (12115388712781) 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, 3935565 + ... + 6302336.

It is an arithmetic number, because the mean of its divisors is an integer number (763665585984).

Almost surely, 2^{12115388712786} is an apocalyptic number.

12115388712786 is an abundant number, since it is smaller than the sum of its proper divisors (12321910038702).

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

12115388712786 is a wasteful number, since it uses less digits than its factorization.

12115388712786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239586.

The product of its digits is 9031680, while the sum is 60.

The spelling of 12115388712786 in words is "twelve trillion, one hundred fifteen billion, three hundred eighty-eight million, seven hundred twelve thousand, seven hundred eighty-six".