2118626669009 has 8 divisors (see below), whose sum is σ = 2251980377928. Its totient is φ = 1986242805760.

The previous prime is 2118626668981. The next prime is 2118626669011. The reversal of 2118626669009 is 9009666268112.

It can be written as a sum of positive squares in 4 ways, for example, as 602723980609 + 1515902688400 = 776353^2 + 1231220^2 .

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 2118626669009 - 2³⁶ = 2049907192273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118626669309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242456912 + ... + 242465649.

It is an arithmetic number, because the mean of its divisors is an integer number (281497547241).

Almost surely, 2^{2118626669009} is an apocalyptic number.

It is an amenable number.

2118626669009 is a deficient number, since it is larger than the sum of its proper divisors (133353708919).

2118626669009 is a wasteful number, since it uses less digits than its factorization.

2118626669009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484922835.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 2118626669009 in words is "two trillion, one hundred eighteen billion, six hundred twenty-six million, six hundred sixty-nine thousand, nine".