11718853485 has 16 divisors (see below), whose sum is σ = 18751815360. Its totient is φ = 6249505280.

The previous prime is 11718853483. The next prime is 11718853493. The reversal of 11718853485 is 58435881711.

It is a happy number.

It is not a de Polignac number, because 11718853485 - 2¹ = 11718853483 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11718853481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188350 + ... + 242720.

It is an arithmetic number, because the mean of its divisors is an integer number (1171988460).

Almost surely, 2^11718853485 is an apocalyptic number.

11718853485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11718853485 is a deficient number, since it is larger than the sum of its proper divisors (7032961875).

11718853485 is a wasteful number, since it uses less digits than its factorization.

11718853485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68748.

The product of its digits is 1075200, while the sum is 51.

The spelling of 11718853485 in words is "eleven billion, seven hundred eighteen million, eight hundred fifty-three thousand, four hundred eighty-five".