2205638583987 has 8 divisors (see below), whose sum is σ = 2946991011840. Its totient is φ = 1467355939400.

The previous prime is 2205638583917. The next prime is 2205638584001. The reversal of 2205638583987 is 7893858365022.

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 2205638583987 - 2¹² = 2205638579891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205638583917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767444139 + ... + 767447012.

It is an arithmetic number, because the mean of its divisors is an integer number (368373876480).

Almost surely, 2^{2205638583987} is an apocalyptic number.

2205638583987 is a deficient number, since it is larger than the sum of its proper divisors (741352427853).

2205638583987 is a wasteful number, since it uses less digits than its factorization.

2205638583987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534891633.

The product of its (nonzero) digits is 174182400, while the sum is 66.

The spelling of 2205638583987 in words is "two trillion, two hundred five billion, six hundred thirty-eight million, five hundred eighty-three thousand, nine hundred eighty-seven".