42878305818087 has 16 divisors (see below), whose sum is σ = 57759386805120. Its totient is φ = 28292878000800.

The previous prime is 42878305818037. The next prime is 42878305818163. The reversal of 42878305818087 is 78081850387824.

It is not a de Polignac number, because 42878305818087 - 2¹⁶ = 42878305752551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878305818037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187007637 + ... + 187236782.

It is an arithmetic number, because the mean of its divisors is an integer number (3609961675320).

Almost surely, 2^{42878305818087} is an apocalyptic number.

42878305818087 is a deficient number, since it is larger than the sum of its proper divisors (14881080987033).

42878305818087 is a wasteful number, since it uses less digits than its factorization.

42878305818087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374244814.

The product of its (nonzero) digits is 192675840, while the sum is 69.

The spelling of 42878305818087 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred five million, eight hundred eighteen thousand, eighty-seven".