2138105536 has 28 divisors (see below), whose sum is σ = 4848918928. Its totient is φ = 916330752.

The previous prime is 2138105527. The next prime is 2138105537. The reversal of 2138105536 is 6355018312.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (2138105537) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2385831 + ... + 2386726.

It is an arithmetic number, because the mean of its divisors is an integer number (173175676).

Almost surely, 2^2138105536 is an apocalyptic number.

It is an amenable number.

2138105536 is an abundant number, since it is smaller than the sum of its proper divisors (2710813392).

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

2138105536 is an equidigital number, since it uses as much as digits as its factorization.

2138105536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772576 (or 4772566 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2138105536 is about 46239.6532858974. The cubic root of 2138105536 is about 1288.2783627362.

The spelling of 2138105536 in words is "two billion, one hundred thirty-eight million, one hundred five thousand, five hundred thirty-six".