11728853861905 has 64 divisors (see below), whose sum is σ = 15195790172160. Its totient is φ = 8664417828864.

The previous prime is 11728853861891. The next prime is 11728853861957. The reversal of 11728853861905 is 50916835882711.

It is not a de Polignac number, because 11728853861905 - 2⁹ = 11728853861393 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226325557 + ... + 226377373.

It is an arithmetic number, because the mean of its divisors is an integer number (237434221440).

Almost surely, 2^{11728853861905} is an apocalyptic number.

It is an amenable number.

11728853861905 is a deficient number, since it is larger than the sum of its proper divisors (3466936310255).

11728853861905 is a wasteful number, since it uses less digits than its factorization.

11728853861905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52298.

The product of its (nonzero) digits is 29030400, while the sum is 64.

The spelling of 11728853861905 in words is "eleven trillion, seven hundred twenty-eight billion, eight hundred fifty-three million, eight hundred sixty-one thousand, nine hundred five".