11618469109 has 8 divisors (see below), whose sum is σ = 12513508280. Its totient is φ = 10723617216.

The previous prime is 11618469101. The next prime is 11618469131. The reversal of 11618469109 is 90196481611.

11618469109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 488852100 + 11129617009 = 22110^2 + 105497^2 .

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

It is not a de Polignac number, because 11618469109 - 2³ = 11618469101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11618469101) 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, 98839 + ... + 181675.

It is an arithmetic number, because the mean of its divisors is an integer number (1564188535).

Almost surely, 2^11618469109 is an apocalyptic number.

It is an amenable number.

11618469109 is a deficient number, since it is larger than the sum of its proper divisors (895039171).

11618469109 is a wasteful number, since it uses less digits than its factorization.

11618469109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93639.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 11618469109 in words is "eleven billion, six hundred eighteen million, four hundred sixty-nine thousand, one hundred nine".