11853405925813 has 4 divisors (see below), whose sum is σ = 11853420848748. Its totient is φ = 11853391002880.

The previous prime is 11853405925787. The next prime is 11853405925871. The reversal of 11853405925813 is 31852950435811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3930318145009 + 7923087780804 = 1982503^2 + 2814798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11853405925813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11853405920813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6198778 + ... + 7882363.

It is an arithmetic number, because the mean of its divisors is an integer number (2963355212187).

Almost surely, 2^{11853405925813} is an apocalyptic number.

It is an amenable number.

11853405925813 is a deficient number, since it is larger than the sum of its proper divisors (14922935).

11853405925813 is an equidigital number, since it uses as much as digits as its factorization.

11853405925813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14922934.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 11853405925813 in words is "eleven trillion, eight hundred fifty-three billion, four hundred five million, nine hundred twenty-five thousand, eight hundred thirteen".