42686668624 has 20 divisors (see below), whose sum is σ = 84465111744. Its totient is φ = 20889220448.

The previous prime is 42686668603. The next prime is 42686668637.

42686668624 is nontrivially palindromic in base 10.

42686668624 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 3×42686668624³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28381342 + ... + 28382845.

Almost surely, 2^42686668624 is an apocalyptic number.

It is an amenable number.

42686668624 is a deficient number, since it is larger than the sum of its proper divisors (41778443120).

42686668624 is a wasteful number, since it uses less digits than its factorization.

42686668624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56764242 (or 56764236 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 58.

The spelling of 42686668624 in words is "forty-two billion, six hundred eighty-six million, six hundred sixty-eight thousand, six hundred twenty-four".