42878305818107 has 16 divisors (see below), whose sum is σ = 43966866968640. Its totient is φ = 41791790208000.

The previous prime is 42878305818037. The next prime is 42878305818163. The reversal of 42878305818107 is 70181850387824.

It is a cyclic number.

It is not a de Polignac number, because 42878305818107 - 2¹² = 42878305814011 is a prime.

It is a super-2 number, since 2×42878305818107² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42878305818107.

It is not an unprimeable number, because it can be changed into a prime (42878305818407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373632578 + ... + 373747320.

It is an arithmetic number, because the mean of its divisors is an integer number (2747929185540).

Almost surely, 2^{42878305818107} is an apocalyptic number.

42878305818107 is a deficient number, since it is larger than the sum of its proper divisors (1088561150533).

42878305818107 is a wasteful number, since it uses less digits than its factorization.

42878305818107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123574.

The product of its (nonzero) digits is 24084480, while the sum is 62.

The spelling of 42878305818107 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred five million, eight hundred eighteen thousand, one hundred seven".