42513426808 has 64 divisors (see below), whose sum is σ = 81413100000. Its totient is φ = 20809592832.

The previous prime is 42513426793. The next prime is 42513426827. The reversal of 42513426808 is 80862431524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28360443 + ... + 28361941.

Almost surely, 2^42513426808 is an apocalyptic number.

It is an amenable number.

42513426808 is a deficient number, since it is larger than the sum of its proper divisors (38899673192).

42513426808 is a wasteful number, since it uses less digits than its factorization.

42513426808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 42513426808 in words is "forty-two billion, five hundred thirteen million, four hundred twenty-six thousand, eight hundred eight".