12855464911 has 4 divisors (see below), whose sum is σ = 13414398192. Its totient is φ = 12296531632.

The previous prime is 12855464861. The next prime is 12855464933. The reversal of 12855464911 is 11946455821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11946455821 = 643 ⋅18579247.

It is a cyclic number.

It is not a de Polignac number, because 12855464911 - 2⁹ = 12855464399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855464981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279466606 + ... + 279466651.

It is an arithmetic number, because the mean of its divisors is an integer number (3353599548).

Almost surely, 2^12855464911 is an apocalyptic number.

12855464911 is a deficient number, since it is larger than the sum of its proper divisors (558933281).

12855464911 is an equidigital number, since it uses as much as digits as its factorization.

12855464911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558933280.

The product of its digits is 345600, while the sum is 46.

The spelling of 12855464911 in words is "twelve billion, eight hundred fifty-five million, four hundred sixty-four thousand, nine hundred eleven".