42668416188 has 18 divisors (see below), whose sum is σ = 107856274344. Its totient is φ = 14222805384.

The previous prime is 42668416181. The next prime is 42668416247. The reversal of 42668416188 is 88161486624.

It is a happy number.

42668416188 is a `hidden beast` number, since 42 + 6 + 6 + 8 + 416 + 188 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42668416181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 592616856 + ... + 592616927.

Almost surely, 2^42668416188 is an apocalyptic number.

It is an amenable number.

42668416188 is an abundant number, since it is smaller than the sum of its proper divisors (65187858156).

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

42668416188 is a wasteful number, since it uses less digits than its factorization.

42668416188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185233793 (or 1185233788 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The spelling of 42668416188 in words is "forty-two billion, six hundred sixty-eight million, four hundred sixteen thousand, one hundred eighty-eight".