42108906384 has 60 divisors (see below), whose sum is σ = 118774429696. Its totient is φ = 13925774016.

The previous prime is 42108906383. The next prime is 42108906397. The reversal of 42108906384 is 48360980124.

It is a happy number.

42108906384 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 8 + 9 + 0 + 638 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (42108906383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1132984 + ... + 1169559.

Almost surely, 2^42108906384 is an apocalyptic number.

It is an amenable number.

42108906384 is an abundant number, since it is smaller than the sum of its proper divisors (76665523312).

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

42108906384 is a wasteful number, since it uses less digits than its factorization.

42108906384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302684 (or 2302675 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 42108906384 in words is "forty-two billion, one hundred eight million, nine hundred six thousand, three hundred eighty-four".