11418711755509 has 8 divisors (see below), whose sum is σ = 11663070012288. Its totient is φ = 11174412121440.

The previous prime is 11418711755483. The next prime is 11418711755527. The reversal of 11418711755509 is 90555711781411.

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 11418711755509 - 2²³ = 11418703366901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11418711755509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11418711795509) 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 7 ways as a sum of consecutive naturals, for example, 14261832 + ... + 15041185.

It is an arithmetic number, because the mean of its divisors is an integer number (1457883751536).

Almost surely, 2^{11418711755509} is an apocalyptic number.

It is an amenable number.

11418711755509 is a deficient number, since it is larger than the sum of its proper divisors (244358256779).

11418711755509 is an equidigital number, since it uses as much as digits as its factorization.

11418711755509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29311355.

The product of its (nonzero) digits is 1764000, while the sum is 55.

The spelling of 11418711755509 in words is "eleven trillion, four hundred eighteen billion, seven hundred eleven million, seven hundred fifty-five thousand, five hundred nine".