42185758447 has 8 divisors (see below), whose sum is σ = 48238641152. Its totient is φ = 36139462200.

The previous prime is 42185758379. The next prime is 42185758457. The reversal of 42185758447 is 74485758124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42185758447 - 2¹⁹ = 42185234159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42185758457) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1632879 + ... + 1658512.

It is an arithmetic number, because the mean of its divisors is an integer number (6029830144).

Almost surely, 2^42185758447 is an apocalyptic number.

42185758447 is a deficient number, since it is larger than the sum of its proper divisors (6052882705).

42185758447 is a wasteful number, since it uses less digits than its factorization.

42185758447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293229.

The product of its digits is 10035200, while the sum is 55.

The spelling of 42185758447 in words is "forty-two billion, one hundred eighty-five million, seven hundred fifty-eight thousand, four hundred forty-seven".