42118133864 has 16 divisors (see below), whose sum is σ = 79223810820. Its totient is φ = 20991784320.

The previous prime is 42118133839. The next prime is 42118133887. The reversal of 42118133864 is 46833181124.

It can be written as a sum of positive squares in 2 ways, for example, as 32056037764 + 10062096100 = 179042^2 + 100310^2 .

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, 8407667 + ... + 8412674.

Almost surely, 2^42118133864 is an apocalyptic number.

It is an amenable number.

42118133864 is a deficient number, since it is larger than the sum of its proper divisors (37105676956).

42118133864 is a wasteful number, since it uses less digits than its factorization.

42118133864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16820660 (or 16820656 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The spelling of 42118133864 in words is "forty-two billion, one hundred eighteen million, one hundred thirty-three thousand, eight hundred sixty-four".