42878306105767 has 4 divisors (see below), whose sum is σ = 46776333933576. Its totient is φ = 38980278277960.

The previous prime is 42878306105759. The next prime is 42878306105773. The reversal of 42878306105767 is 76750160387824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42878306105767 - 2³ = 42878306105759 is a prime.

It is a super-3 number, since 3×42878306105767³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42878306105699 and 42878306105708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878306102767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949013913888 + ... + 1949013913909.

It is an arithmetic number, because the mean of its divisors is an integer number (11694083483394).

Almost surely, 2^{42878306105767} is an apocalyptic number.

42878306105767 is a deficient number, since it is larger than the sum of its proper divisors (3898027827809).

42878306105767 is a wasteful number, since it uses less digits than its factorization.

42878306105767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898027827808.

The product of its (nonzero) digits is 94832640, while the sum is 64.

The spelling of 42878306105767 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred six million, one hundred five thousand, seven hundred sixty-seven".