18350026011 has 10 divisors (see below), whose sum is σ = 27411767372. Its totient is φ = 12233350620.

The previous prime is 18350026007. The next prime is 18350026027. The reversal of 18350026011 is 11062005381.

18350026011 is a `hidden beast` number, since 1 + 8 + 3 + 50 + 0 + 2 + 601 + 1 = 666.

It is not a de Polignac number, because 18350026011 - 2² = 18350026007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18350026031) 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 9 ways as a sum of consecutive naturals, for example, 113271685 + ... + 113271846.

Almost surely, 2^18350026011 is an apocalyptic number.

18350026011 is a deficient number, since it is larger than the sum of its proper divisors (9061741361).

18350026011 is an equidigital number, since it uses as much as digits as its factorization.

18350026011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226543543 (or 226543534 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 18350026011 in words is "eighteen billion, three hundred fifty million, twenty-six thousand, eleven".