2113529805 has 48 divisors (see below), whose sum is σ = 3713973120. Its totient is φ = 1111768704.

The previous prime is 2113529783. The next prime is 2113529833. The reversal of 2113529805 is 5089253112.

2113529805 is a `hidden beast` number, since 211 + 352 + 98 + 0 + 5 = 666.

It is not a de Polignac number, because 2113529805 - 2⁶ = 2113529741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113529805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1265511 + ... + 1267179.

It is an arithmetic number, because the mean of its divisors is an integer number (77374440).

Almost surely, 2^2113529805 is an apocalyptic number.

It is an amenable number.

2113529805 is a deficient number, since it is larger than the sum of its proper divisors (1600443315).

2113529805 is a wasteful number, since it uses less digits than its factorization.

2113529805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 2113529805 is about 45973.1422136882. The cubic root of 2113529805 is about 1283.3234364035.

The spelling of 2113529805 in words is "two billion, one hundred thirteen million, five hundred twenty-nine thousand, eight hundred five".