12876654344478 has 16 divisors (see below), whose sum is σ = 25758918264576. Its totient is φ = 4291283185560.

The previous prime is 12876654344381. The next prime is 12876654344513. The reversal of 12876654344478 is 87444345667821.

12876654344478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233702476 + ... + 233757567.

It is an arithmetic number, because the mean of its divisors is an integer number (1609932391536).

Almost surely, 2^{12876654344478} is an apocalyptic number.

12876654344478 is an abundant number, since it is smaller than the sum of its proper divisors (12882263920098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12876654344478 is a wasteful number, since it uses less digits than its factorization.

12876654344478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467464639.

The product of its digits is 867041280, while the sum is 69.

The spelling of 12876654344478 in words is "twelve trillion, eight hundred seventy-six billion, six hundred fifty-four million, three hundred forty-four thousand, four hundred seventy-eight".