2168932440688 has 20 divisors (see below), whose sum is σ = 4525560958408. Its totient is φ = 1001045741760.

The previous prime is 2168932440673. The next prime is 2168932440713. The reversal of 2168932440688 is 8860442398612.

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, 5213779698 + ... + 5213780113.

Almost surely, 2^{2168932440688} is an apocalyptic number.

It is an amenable number.

2168932440688 is an abundant number, since it is smaller than the sum of its proper divisors (2356628517720).

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

2168932440688 is a wasteful number, since it uses less digits than its factorization.

2168932440688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427559832 (or 10427559826 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 61.

The spelling of 2168932440688 in words is "two trillion, one hundred sixty-eight billion, nine hundred thirty-two million, four hundred forty thousand, six hundred eighty-eight".