11685853725 has 48 divisors (see below), whose sum is σ = 23779228032. Its totient is φ = 4931170560.

The previous prime is 11685853691. The next prime is 11685853733. The reversal of 11685853725 is 52735858611.

It is not a de Polignac number, because 11685853725 - 2⁸ = 11685853469 is a prime.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 849282 + ... + 862931.

It is an arithmetic number, because the mean of its divisors is an integer number (495400584).

Almost surely, 2^11685853725 is an apocalyptic number.

11685853725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11685853725 is an abundant number, since it is smaller than the sum of its proper divisors (12093374307).

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

11685853725 is a wasteful number, since it uses less digits than its factorization.

11685853725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712246 (or 1712241 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The spelling of 11685853725 in words is "eleven billion, six hundred eighty-five million, eight hundred fifty-three thousand, seven hundred twenty-five".