2004217597985 has 16 divisors (see below), whose sum is σ = 2409401164800. Its totient is φ = 1600482675456.

The previous prime is 2004217597969. The next prime is 2004217598039. The reversal of 2004217597985 is 5897957124002.

It is a cyclic number.

It is not a de Polignac number, because 2004217597985 - 2⁴ = 2004217597969 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8151977 + ... + 8394233.

It is an arithmetic number, because the mean of its divisors is an integer number (150587572800).

Almost surely, 2^{2004217597985} is an apocalyptic number.

It is an amenable number.

2004217597985 is a deficient number, since it is larger than the sum of its proper divisors (405183566815).

2004217597985 is a wasteful number, since it uses less digits than its factorization.

2004217597985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245240.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 2004217597985 in words is "two trillion, four billion, two hundred seventeen million, five hundred ninety-seven thousand, nine hundred eighty-five".