42109729204 has 12 divisors (see below), whose sum is σ = 75405794464. Its totient is φ = 20565216504.

The previous prime is 42109729199. The next prime is 42109729261. The reversal of 42109729204 is 40292790124.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 122411832 + ... + 122412175.

Almost surely, 2^42109729204 is an apocalyptic number.

It is an amenable number.

42109729204 is a deficient number, since it is larger than the sum of its proper divisors (33296065260).

42109729204 is a wasteful number, since it uses less digits than its factorization.

42109729204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244824054 (or 244824052 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 42109729204 in words is "forty-two billion, one hundred nine million, seven hundred twenty-nine thousand, two hundred four".