2117888453568 has 28 divisors (see below), whose sum is σ = 5603579867240. Its totient is φ = 705962817792.

The previous prime is 2117888453533. The next prime is 2117888453579. The reversal of 2117888453568 is 8653548887112.

It is a junction number, because it is equal to n+sod(n) for n = 2117888453499 and 2117888453508.

It is a congruent number.

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, 5515334323 + ... + 5515334706.

Almost surely, 2^{2117888453568} is an apocalyptic number.

It is an amenable number.

2117888453568 is an abundant number, since it is smaller than the sum of its proper divisors (3485691413672).

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

2117888453568 is a wasteful number, since it uses less digits than its factorization.

2117888453568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11030669044 (or 11030669034 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 66.

The spelling of 2117888453568 in words is "two trillion, one hundred seventeen billion, eight hundred eighty-eight million, four hundred fifty-three thousand, five hundred sixty-eight".