2208651632687 has 12 divisors (see below), whose sum is σ = 2331121342320. Its totient is φ = 2092310998272.

The previous prime is 2208651632669. The next prime is 2208651632731. The reversal of 2208651632687 is 7862361568022.

It is a de Polignac number, because none of the positive numbers 2^k-2208651632687 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 (2208651632617) 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 11 ways as a sum of consecutive naturals, for example, 8490014 + ... + 8746292.

It is an arithmetic number, because the mean of its divisors is an integer number (194260111860).

Almost surely, 2^{2208651632687} is an apocalyptic number.

2208651632687 is a deficient number, since it is larger than the sum of its proper divisors (122469709633).

2208651632687 is a wasteful number, since it uses less digits than its factorization.

2208651632687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280190 (or 280171 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 2208651632687 in words is "two trillion, two hundred eight billion, six hundred fifty-one million, six hundred thirty-two thousand, six hundred eighty-seven".