11856340853 has 8 divisors (see below), whose sum is σ = 13621048320. Its totient is φ = 10109369520.

The previous prime is 11856340843. The next prime is 11856340883. The reversal of 11856340853 is 35804365811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11856340853 - 2⁶ = 11856340789 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 (11856340843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432598 + ... + 4435271.

It is an arithmetic number, because the mean of its divisors is an integer number (1702631040).

Almost surely, 2^11856340853 is an apocalyptic number.

It is an amenable number.

11856340853 is a deficient number, since it is larger than the sum of its proper divisors (1764707467).

11856340853 is an equidigital number, since it uses as much as digits as its factorization.

11856340853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868067.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 11856340853 in words is "eleven billion, eight hundred fifty-six million, three hundred forty thousand, eight hundred fifty-three".