12868466486821 has 12 divisors (see below), whose sum is σ = 14144947391232. Its totient is φ = 11698383125000.

The previous prime is 12868466486819. The next prime is 12868466486873.

12868466486821 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12868466486821 - 2¹ = 12868466486819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868466486891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5542446 + ... + 7513696.

It is an arithmetic number, because the mean of its divisors is an integer number (1178745615936).

Almost surely, 2^{12868466486821} is an apocalyptic number.

12868466486821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12868466486821 is a deficient number, since it is larger than the sum of its proper divisors (1276480904411).

12868466486821 is a wasteful number, since it uses less digits than its factorization.

12868466486821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025224 (or 2025213 counting only the distinct ones).

The product of its digits is 339738624, while the sum is 70.

The spelling of 12868466486821 in words is "twelve trillion, eight hundred sixty-eight billion, four hundred sixty-six million, four hundred eighty-six thousand, eight hundred twenty-one".