2128108026 has 64 divisors (see below), whose sum is σ = 4842786816. Its totient is φ = 617587200.

The previous prime is 2128108019. The next prime is 2128108027. The reversal of 2128108026 is 6208018212.

It is a junction number, because it is equal to n+sod(n) for n = 2128107984 and 2128108002.

It is not an unprimeable number, because it can be changed into a prime (2128108027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193101 + ... + 203823.

It is an arithmetic number, because the mean of its divisors is an integer number (75668544).

Almost surely, 2^2128108026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2128108026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421393408).

2128108026 is an abundant number, since it is smaller than the sum of its proper divisors (2714678790).

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

2128108026 is a wasteful number, since it uses less digits than its factorization.

2128108026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10867.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 2128108026 is about 46131.4212440935. The cubic root of 2128108026 is about 1286.2672829387.

The spelling of 2128108026 in words is "two billion, one hundred twenty-eight million, one hundred eight thousand, twenty-six".