42687079866 has 160 divisors (see below), whose sum is σ = 107392824000. Its totient is φ = 12593760768.

The previous prime is 42687079837. The next prime is 42687079891. The reversal of 42687079866 is 66897078624.

42687079866 is a `hidden beast` number, since 426 + 87 + 0 + 79 + 8 + 66 = 666.

42687079866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×42687079866³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7270380 + ... + 7276248.

It is an arithmetic number, because the mean of its divisors is an integer number (671205150).

Almost surely, 2^42687079866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42687079866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53696412000).

42687079866 is an abundant number, since it is smaller than the sum of its proper divisors (64705744134).

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

42687079866 is a wasteful number, since it uses less digits than its factorization.

42687079866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6049 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 42687079866 in words is "forty-two billion, six hundred eighty-seven million, seventy-nine thousand, eight hundred sixty-six".