2128367766 has 16 divisors (see below), whose sum is σ = 4864840704. Its totient is φ = 608105064.

The previous prime is 2128367753. The next prime is 2128367807. The reversal of 2128367766 is 6677638212.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25337670 + ... + 25337753.

It is an arithmetic number, because the mean of its divisors is an integer number (304052544).

Almost surely, 2^2128367766 is an apocalyptic number.

2128367766 is an abundant number, since it is smaller than the sum of its proper divisors (2736472938).

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

2128367766 is a wasteful number, since it uses less digits than its factorization.

2128367766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50675435.

The product of its digits is 1016064, while the sum is 48.

The square root of 2128367766 is about 46134.2363760364. The cubic root of 2128367766 is about 1286.3196113401.

The spelling of 2128367766 in words is "two billion, one hundred twenty-eight million, three hundred sixty-seven thousand, seven hundred sixty-six".