12878954808442 has 16 divisors (see below), whose sum is σ = 19388547154080. Its totient is φ = 6416140720528.

The previous prime is 12878954808389. The next prime is 12878954808449. The reversal of 12878954808442 is 24480845987821.

It is not an unprimeable number, because it can be changed into a prime (12878954808449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8003428 + ... + 9476959.

It is an arithmetic number, because the mean of its divisors is an integer number (1211784197130).

Almost surely, 2^{12878954808442} is an apocalyptic number.

12878954808442 is a deficient number, since it is larger than the sum of its proper divisors (6509592345638).

12878954808442 is a wasteful number, since it uses less digits than its factorization.

12878954808442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17481725.

The product of its (nonzero) digits is 330301440, while the sum is 70.

The spelling of 12878954808442 in words is "twelve trillion, eight hundred seventy-eight billion, nine hundred fifty-four million, eight hundred eight thousand, four hundred forty-two".