12878854771 has 8 divisors (see below), whose sum is σ = 13074073040. Its totient is φ = 12683724768.

The previous prime is 12878854757. The next prime is 12878854831. The reversal of 12878854771 is 17745887821.

It is a happy number.

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 12878854771 - 2⁵ = 12878854739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12878852771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309325 + ... + 348481.

It is an arithmetic number, because the mean of its divisors is an integer number (1634259130).

Almost surely, 2^12878854771 is an apocalyptic number.

12878854771 is a deficient number, since it is larger than the sum of its proper divisors (195218269).

12878854771 is an equidigital number, since it uses as much as digits as its factorization.

12878854771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44133.

The product of its digits is 7024640, while the sum is 58.

The spelling of 12878854771 in words is "twelve billion, eight hundred seventy-eight million, eight hundred fifty-four thousand, seven hundred seventy-one".