2128817106626 has 24 divisors (see below), whose sum is σ = 3716921376720. Its totient is φ = 911772319752.

The previous prime is 2128817106623. The next prime is 2128817106631. The reversal of 2128817106626 is 6266017188212.

It is not an unprimeable number, because it can be changed into a prime (2128817106623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6723860 + ... + 7033343.

It is an arithmetic number, because the mean of its divisors is an integer number (154871724030).

Almost surely, 2^{2128817106626} is an apocalyptic number.

2128817106626 is a deficient number, since it is larger than the sum of its proper divisors (1588104270094).

2128817106626 is a wasteful number, since it uses less digits than its factorization.

2128817106626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758798 (or 13758791 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 2128817106626 in words is "two trillion, one hundred twenty-eight billion, eight hundred seventeen million, one hundred six thousand, six hundred twenty-six".