12811466868723 has 6 divisors (see below), whose sum is σ = 18505452143724. Its totient is φ = 8540977912476.

The previous prime is 12811466868679. The next prime is 12811466868791. The reversal of 12811466868723 is 32786866411821.

12811466868723 is a `hidden beast` number, since 1 + 2 + 8 + 11 + 466 + 86 + 87 + 2 + 3 = 666.

It is not a de Polignac number, because 12811466868723 - 2¹⁰ = 12811466867699 is a prime.

It is a super-2 number, since 2×12811466868723² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12811466868623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711748159365 + ... + 711748159382.

It is an arithmetic number, because the mean of its divisors is an integer number (3084242023954).

Almost surely, 2^{12811466868723} is an apocalyptic number.

12811466868723 is a deficient number, since it is larger than the sum of its proper divisors (5693985275001).

12811466868723 is a wasteful number, since it uses less digits than its factorization.

12811466868723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423496318753 (or 1423496318750 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 12811466868723 in words is "twelve trillion, eight hundred eleven billion, four hundred sixty-six million, eight hundred sixty-eight thousand, seven hundred twenty-three".