42878316305705 has 8 divisors (see below), whose sum is σ = 51963424909704. Its totient is φ = 33963022816000.

The previous prime is 42878316305689. The next prime is 42878316305707. The reversal of 42878316305705 is 50750361387824.

It can be written as a sum of positive squares in 4 ways, for example, as 10360003940416 + 32518312365289 = 3218696^2 + 5702483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42878316305705 - 2⁴ = 42878316305689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42878316305707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42453778016 + ... + 42453779025.

It is an arithmetic number, because the mean of its divisors is an integer number (6495428113713).

Almost surely, 2^{42878316305705} is an apocalyptic number.

It is an amenable number.

42878316305705 is a deficient number, since it is larger than the sum of its proper divisors (9085108603999).

42878316305705 is a wasteful number, since it uses less digits than its factorization.

42878316305705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84907557147.

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 42878316305705 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred sixteen million, three hundred five thousand, seven hundred five".