42176381648 has 10 divisors (see below), whose sum is σ = 81716739474. Its totient is φ = 21088190816.

The previous prime is 42176381647. The next prime is 42176381651. The reversal of 42176381648 is 84618367124.

It can be written as a sum of positive squares in only one way, i.e., 29182205584 + 12994176064 = 170828^2 + 113992^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42176381596 and 42176381605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42176381641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318011911 + ... + 1318011942.

Almost surely, 2^42176381648 is an apocalyptic number.

It is an amenable number.

42176381648 is a deficient number, since it is larger than the sum of its proper divisors (39540357826).

42176381648 is a wasteful number, since it uses less digits than its factorization.

42176381648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636023861 (or 2636023855 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 50.

The spelling of 42176381648 in words is "forty-two billion, one hundred seventy-six million, three hundred eighty-one thousand, six hundred forty-eight".