2128108766 has 16 divisors (see below), whose sum is σ = 3670571904. Its totient is φ = 906450264.

The previous prime is 2128108747. The next prime is 2128108783. The reversal of 2128108766 is 6678018212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464000 + ... + 468563.

It is an arithmetic number, because the mean of its divisors is an integer number (229410744).

Almost surely, 2^2128108766 is an apocalyptic number.

2128108766 is a deficient number, since it is larger than the sum of its proper divisors (1542463138).

2128108766 is a wasteful number, since it uses less digits than its factorization.

2128108766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932735.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 2128108766 is about 46131.4292646564. The cubic root of 2128108766 is about 1286.2674320285.

The spelling of 2128108766 in words is "two billion, one hundred twenty-eight million, one hundred eight thousand, seven hundred sixty-six".