11948185563 has 8 divisors (see below), whose sum is σ = 15932837376. Its totient is φ = 7964495400.

The previous prime is 11948185547. The next prime is 11948185589. The reversal of 11948185563 is 36558184911.

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

It is not a de Polignac number, because 11948185563 - 2⁴ = 11948185547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11948185523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 210903 + ... + 261488.

It is an arithmetic number, because the mean of its divisors is an integer number (1991604672).

Almost surely, 2^11948185563 is an apocalyptic number.

11948185563 is a deficient number, since it is larger than the sum of its proper divisors (3984651813).

11948185563 is an equidigital number, since it uses as much as digits as its factorization.

11948185563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480825.

The product of its digits is 1036800, while the sum is 51.

The spelling of 11948185563 in words is "eleven billion, nine hundred forty-eight million, one hundred eighty-five thousand, five hundred sixty-three".