4278541167878 has 4 divisors (see below), whose sum is σ = 6417811751820. Its totient is φ = 2139270583938.

The previous prime is 4278541167853. The next prime is 4278541167931. The reversal of 4278541167878 is 8787611458724.

4278541167878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069635291968 + ... + 1069635291971.

It is an arithmetic number, because the mean of its divisors is an integer number (1604452937955).

Almost surely, 2^{4278541167878} is an apocalyptic number.

4278541167878 is a deficient number, since it is larger than the sum of its proper divisors (2139270583942).

4278541167878 is a wasteful number, since it uses less digits than its factorization.

4278541167878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139270583941.

The product of its digits is 168591360, while the sum is 68.

The spelling of 4278541167878 in words is "four trillion, two hundred seventy-eight billion, five hundred forty-one million, one hundred sixty-seven thousand, eight hundred seventy-eight".