42318777838 has 8 divisors (see below), whose sum is σ = 63479092032. Its totient is φ = 21159080496.

The previous prime is 42318777817. The next prime is 42318777869. The reversal of 42318777838 is 83877781324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 103306 + ... + 308722.

It is an arithmetic number, because the mean of its divisors is an integer number (7934886504).

Almost surely, 2^42318777838 is an apocalyptic number.

42318777838 is a deficient number, since it is larger than the sum of its proper divisors (21160314194).

42318777838 is a wasteful number, since it uses less digits than its factorization.

42318777838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308426.

The product of its digits is 12644352, while the sum is 58.

The spelling of 42318777838 in words is "forty-two billion, three hundred eighteen million, seven hundred seventy-seven thousand, eight hundred thirty-eight".