12378122841886 has 16 divisors (see below), whose sum is σ = 19219459335840. Its totient is φ = 5971903670880.

The previous prime is 12378122841883. The next prime is 12378122841911. The reversal of 12378122841886 is 68814822187321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378122841881) 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, 66725130 + ... + 66910381.

It is an arithmetic number, because the mean of its divisors is an integer number (1201216208490).

Almost surely, 2^{12378122841886} is an apocalyptic number.

12378122841886 is a deficient number, since it is larger than the sum of its proper divisors (6841336493954).

12378122841886 is a wasteful number, since it uses less digits than its factorization.

12378122841886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133637139.

The product of its digits is 16515072, while the sum is 61.

The spelling of 12378122841886 in words is "twelve trillion, three hundred seventy-eight billion, one hundred twenty-two million, eight hundred forty-one thousand, eight hundred eighty-six".