11782489563 has 24 divisors (see below), whose sum is σ = 18359332992. Its totient is φ = 7238492928.

The previous prime is 11782489561. The next prime is 11782489571. The reversal of 11782489563 is 36598428711.

11782489563 is a `hidden beast` number, since 1 + 1 + 78 + 2 + 4 + 8 + 9 + 563 = 666.

It is not a de Polignac number, because 11782489563 - 2¹ = 11782489561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11782489561) 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 23 ways as a sum of consecutive naturals, for example, 15531 + ... + 154292.

It is an arithmetic number, because the mean of its divisors is an integer number (764972208).

Almost surely, 2^11782489563 is an apocalyptic number.

11782489563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11782489563 is a deficient number, since it is larger than the sum of its proper divisors (6576843429).

11782489563 is a wasteful number, since it uses less digits than its factorization.

11782489563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170435 (or 170432 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

It can be divided in two parts, 1178248 and 9563, that added together give a palindrome (1187811).

The spelling of 11782489563 in words is "eleven billion, seven hundred eighty-two million, four hundred eighty-nine thousand, five hundred sixty-three".