42418639406 has 16 divisors (see below), whose sum is σ = 74751728688. Its totient is φ = 17798030400.

The previous prime is 42418639399. The next prime is 42418639447. The reversal of 42418639406 is 60493681424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74158175 + ... + 74158746.

It is an arithmetic number, because the mean of its divisors is an integer number (4671983043).

Almost surely, 2^42418639406 is an apocalyptic number.

42418639406 is a deficient number, since it is larger than the sum of its proper divisors (32333089282).

42418639406 is a wasteful number, since it uses less digits than its factorization.

42418639406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148316947.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 42418639406 in words is "forty-two billion, four hundred eighteen million, six hundred thirty-nine thousand, four hundred six".