42471447138 has 24 divisors (see below), whose sum is σ = 92272222848. Its totient is φ = 14118571512.

The previous prime is 42471447103. The next prime is 42471447209. The reversal of 42471447138 is 83174417424.

42471447138 is a `hidden beast` number, since 4 + 2 + 4 + 71 + 447 + 138 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 42471447093 and 42471447102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3208006 + ... + 3221217.

It is an arithmetic number, because the mean of its divisors is an integer number (3844675952).

Almost surely, 2^42471447138 is an apocalyptic number.

42471447138 is an abundant number, since it is smaller than the sum of its proper divisors (49800775710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42471447138 is a wasteful number, since it uses less digits than its factorization.

42471447138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429598 (or 6429595 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The spelling of 42471447138 in words is "forty-two billion, four hundred seventy-one million, four hundred forty-seven thousand, one hundred thirty-eight".