42878306286705 has 16 divisors (see below), whose sum is σ = 69571561751424. Its totient is φ = 22546339455360.

The previous prime is 42878306286689. The next prime is 42878306286719. The reversal of 42878306286705 is 50768260387824.

It is not a de Polignac number, because 42878306286705 - 2⁴ = 42878306286689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20130659164 + ... + 20130661293.

It is an arithmetic number, because the mean of its divisors is an integer number (4348222609464).

Almost surely, 2^{42878306286705} is an apocalyptic number.

It is an amenable number.

42878306286705 is a deficient number, since it is larger than the sum of its proper divisors (26693255464719).

42878306286705 is a wasteful number, since it uses less digits than its factorization.

42878306286705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40261320536.

The product of its (nonzero) digits is 216760320, while the sum is 66.

The spelling of 42878306286705 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred six million, two hundred eighty-six thousand, seven hundred five".