442087917903 has 16 divisors (see below), whose sum is σ = 664169644800. Its totient is φ = 290574217080.

The previous prime is 442087917881. The next prime is 442087917917. The reversal of 442087917903 is 309719780244.

It is not a de Polignac number, because 442087917903 - 2⁵ = 442087917871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442087917903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442087917923) 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, 115305313 + ... + 115309146.

It is an arithmetic number, because the mean of its divisors is an integer number (41510602800).

Almost surely, 2^442087917903 is an apocalyptic number.

442087917903 is a deficient number, since it is larger than the sum of its proper divisors (222081726897).

442087917903 is a wasteful number, since it uses less digits than its factorization.

442087917903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230614539 (or 230614533 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 442087917903 in words is "four hundred forty-two billion, eighty-seven million, nine hundred seventeen thousand, nine hundred three".