11727818553 has 32 divisors (see below), whose sum is σ = 17766577152. Its totient is φ = 6818212800.

The previous prime is 11727818551. The next prime is 11727818561. The reversal of 11727818553 is 35581872711.

11727818553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11727818553 - 2¹ = 11727818551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11727818551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19050 + ... + 154332.

It is an arithmetic number, because the mean of its divisors is an integer number (555205536).

Almost surely, 2^11727818553 is an apocalyptic number.

It is an amenable number.

11727818553 is a deficient number, since it is larger than the sum of its proper divisors (6038758599).

11727818553 is a wasteful number, since it uses less digits than its factorization.

11727818553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135405.

The product of its digits is 470400, while the sum is 48.

The spelling of 11727818553 in words is "eleven billion, seven hundred twenty-seven million, eight hundred eighteen thousand, five hundred fifty-three".