42878787136178 has 16 divisors (see below), whose sum is σ = 73522765641024. Its totient is φ = 18372554706480.

The previous prime is 42878787136111. The next prime is 42878787136253. The reversal of 42878787136178 is 87163178787824.

It is a junction number, because it is equal to n+sod(n) for n = 42878787136099 and 42878787136108.

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, 338963828 + ... + 339090303.

It is an arithmetic number, because the mean of its divisors is an integer number (4595172852564).

Almost surely, 2^{42878787136178} is an apocalyptic number.

42878787136178 is a deficient number, since it is larger than the sum of its proper divisors (30643978504846).

42878787136178 is a wasteful number, since it uses less digits than its factorization.

42878787136178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678058657.

The product of its digits is 1416167424, while the sum is 77.

The spelling of 42878787136178 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred eighty-seven million, one hundred thirty-six thousand, one hundred seventy-eight".