42678681678 has 16 divisors (see below), whose sum is σ = 94841514960. Its totient is φ = 14226227208.

The previous prime is 42678681629. The next prime is 42678681743. The reversal of 42678681678 is 87618687624.

42678681678 is a `hidden beast` number, since 426 + 78 + 6 + 81 + 67 + 8 = 666.

42678681678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395172925 + ... + 395173032.

It is an arithmetic number, because the mean of its divisors is an integer number (5927594685).

Almost surely, 2^42678681678 is an apocalyptic number.

42678681678 is an abundant number, since it is smaller than the sum of its proper divisors (52162833282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42678681678 is a wasteful number, since it uses less digits than its factorization.

42678681678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790345968 (or 790345962 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 42678681678 in words is "forty-two billion, six hundred seventy-eight million, six hundred eighty-one thousand, six hundred seventy-eight".