12811655843 has 8 divisors (see below), whose sum is σ = 14776222560. Its totient is φ = 10880671680.

The previous prime is 12811655833. The next prime is 12811655867. The reversal of 12811655843 is 34855611821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12811655843 - 2⁴ = 12811655827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12811655794 and 12811655803.

It is not an unprimeable number, because it can be changed into a prime (12811655833) 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 7 ways as a sum of consecutive naturals, for example, 8394818 + ... + 8396343.

It is an arithmetic number, because the mean of its divisors is an integer number (1847027820).

Almost surely, 2^12811655843 is an apocalyptic number.

12811655843 is a deficient number, since it is larger than the sum of its proper divisors (1964566717).

12811655843 is a wasteful number, since it uses less digits than its factorization.

12811655843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16791277.

The product of its digits is 230400, while the sum is 44.

The spelling of 12811655843 in words is "twelve billion, eight hundred eleven million, six hundred fifty-five thousand, eight hundred forty-three".