42878556244086 has 16 divisors (see below), whose sum is σ = 90801648517104. Its totient is φ = 13452096076544.

The previous prime is 42878556244039. The next prime is 42878556244157. The reversal of 42878556244086 is 68044265587824.

It is a self number, because there is not a number n which added to its sum of digits gives 42878556244086.

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, 210189001095 + ... + 210189001298.

It is an arithmetic number, because the mean of its divisors is an integer number (5675103032319).

Almost surely, 2^{42878556244086} is an apocalyptic number.

42878556244086 is an abundant number, since it is smaller than the sum of its proper divisors (47923092273018).

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

42878556244086 is a wasteful number, since it uses less digits than its factorization.

42878556244086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420378002415.

The product of its (nonzero) digits is 825753600, while the sum is 69.

The spelling of 42878556244086 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fifty-six million, two hundred forty-four thousand, eighty-six".