42505383873 has 16 divisors (see below), whose sum is σ = 59675412800. Its totient is φ = 26837075520.

The previous prime is 42505383859. The next prime is 42505383913. The reversal of 42505383873 is 37838350524.

42505383873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42505383873 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42505381873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68583 + ... + 299523.

It is an arithmetic number, because the mean of its divisors is an integer number (3729713300).

Almost surely, 2^42505383873 is an apocalyptic number.

It is an amenable number.

42505383873 is a deficient number, since it is larger than the sum of its proper divisors (17170028927).

42505383873 is a wasteful number, since it uses less digits than its factorization.

42505383873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234192.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 42505383873 in words is "forty-two billion, five hundred five million, three hundred eighty-three thousand, eight hundred seventy-three".