2217688259872 has 48 divisors (see below), whose sum is σ = 4440984196320. Its totient is φ = 1089826956288.

The previous prime is 2217688259849. The next prime is 2217688259881. The reversal of 2217688259872 is 2789528867122.

It is a junction number, because it is equal to n+sod(n) for n = 2217688259798 and 2217688259807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297688 + ... + 9533224.

It is an arithmetic number, because the mean of its divisors is an integer number (92520504090).

Almost surely, 2^{2217688259872} is an apocalyptic number.

It is an amenable number.

2217688259872 is an abundant number, since it is smaller than the sum of its proper divisors (2223295936448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2217688259872 is a wasteful number, since it uses less digits than its factorization.

2217688259872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240593 (or 240585 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 67.

The spelling of 2217688259872 in words is "two trillion, two hundred seventeen billion, six hundred eighty-eight million, two hundred fifty-nine thousand, eight hundred seventy-two".