11853210647 has 4 divisors (see below), whose sum is σ = 11862198480. Its totient is φ = 11844222816.

The previous prime is 11853210541. The next prime is 11853210751. The reversal of 11853210647 is 74601235811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74601235811 = 53 ⋅1407570487.

It is a cyclic number.

It is not a de Polignac number, because 11853210647 - 2¹² = 11853206551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11853210647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11853210247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4491938 + ... + 4494575.

It is an arithmetic number, because the mean of its divisors is an integer number (2965549620).

Almost surely, 2^11853210647 is an apocalyptic number.

11853210647 is a deficient number, since it is larger than the sum of its proper divisors (8987833).

11853210647 is an equidigital number, since it uses as much as digits as its factorization.

11853210647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987832.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 11853210647 in words is "eleven billion, eight hundred fifty-three million, two hundred ten thousand, six hundred forty-seven".