42878536858071 has 48 divisors (see below), whose sum is σ = 62781455213568. Its totient is φ = 28197975052800.

The previous prime is 42878536858057. The next prime is 42878536858103. The reversal of 42878536858071 is 17085863587824.

42878536858071 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 8 + 5 + 36 + 8 + 580 + 7 + 1 = 666.

It is not a de Polignac number, because 42878536858071 - 2⁵ = 42878536858039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878536858271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1120666081 + ... + 1120704341.

It is an arithmetic number, because the mean of its divisors is an integer number (1307946983616).

Almost surely, 2^{42878536858071} is an apocalyptic number.

42878536858071 is a deficient number, since it is larger than the sum of its proper divisors (19902918355497).

42878536858071 is a wasteful number, since it uses less digits than its factorization.

42878536858071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43992 (or 43989 counting only the distinct ones).

The product of its (nonzero) digits is 722534400, while the sum is 72.

The spelling of 42878536858071 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-six million, eight hundred fifty-eight thousand, seventy-one".