12840395214867 has 16 divisors (see below), whose sum is σ = 18788776457472. Its totient is φ = 7735458554720.

The previous prime is 12840395214847. The next prime is 12840395214869. The reversal of 12840395214867 is 76841259304821.

It is a cyclic number.

It is not a de Polignac number, because 12840395214867 - 2¹⁴ = 12840395198483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12840395214867.

It is not an unprimeable number, because it can be changed into a prime (12840395214869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164973188 + ... + 1164984209.

It is an arithmetic number, because the mean of its divisors is an integer number (1174298528592).

It is a 1-persistent number, because it is pandigital, but 2⋅12840395214867 = 25680790429734 is not.

Almost surely, 2^{12840395214867} is an apocalyptic number.

12840395214867 is a deficient number, since it is larger than the sum of its proper divisors (5948381242605).

12840395214867 is a wasteful number, since it uses less digits than its factorization.

12840395214867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329957578.

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 12840395214867 in words is "twelve trillion, eight hundred forty billion, three hundred ninety-five million, two hundred fourteen thousand, eight hundred sixty-seven".