2117573984256 has 60 divisors (see below), whose sum is σ = 5646691760472. Its totient is φ = 705857978368.

The previous prime is 2117573984233. The next prime is 2117573984291. The reversal of 2117573984256 is 6524893757112.

It is a self number, because there is not a number n which added to its sum of digits gives 2117573984256.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21491925 + ... + 21590228.

Almost surely, 2^{2117573984256} is an apocalyptic number.

It is an amenable number.

2117573984256 is an abundant number, since it is smaller than the sum of its proper divisors (3529117776216).

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

2117573984256 is an frugal number, since it uses more digits than its factorization.

2117573984256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43082184 (or 43082158 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 60.

The spelling of 2117573984256 in words is "two trillion, one hundred seventeen billion, five hundred seventy-three million, nine hundred eighty-four thousand, two hundred fifty-six".