42775117884 has 18 divisors (see below), whose sum is σ = 108125992520. Its totient is φ = 14258372616.

The previous prime is 42775117883. The next prime is 42775117897. The reversal of 42775117884 is 48871157724.

It is a happy number.

42775117884 is a `hidden beast` number, since 42 + 7 + 7 + 511 + 7 + 8 + 84 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42775117884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775117883) 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, 594098824 + ... + 594098895.

Almost surely, 2^42775117884 is an apocalyptic number.

It is an amenable number.

42775117884 is an abundant number, since it is smaller than the sum of its proper divisors (65350874636).

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

42775117884 is a wasteful number, since it uses less digits than its factorization.

42775117884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188197729 (or 1188197724 counting only the distinct ones).

The product of its digits is 3512320, while the sum is 54.

The spelling of 42775117884 in words is "forty-two billion, seven hundred seventy-five million, one hundred seventeen thousand, eight hundred eighty-four".