18826011 has 24 divisors (see below), whose sum is σ = 28116816. Its totient is φ = 12130560.

The previous prime is 18825973. The next prime is 18826037. The reversal of 18826011 is 11062881.

It is not a de Polignac number, because 18826011 - 2¹⁰ = 18824987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18826061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59991 + ... + 60303.

It is an arithmetic number, because the mean of its divisors is an integer number (1171534).

Almost surely, 2^18826011 is an apocalyptic number.

18826011 is a deficient number, since it is larger than the sum of its proper divisors (9290805).

18826011 is a wasteful number, since it uses less digits than its factorization.

18826011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 18826011 is about 4338.8951358612. The cubic root of 18826011 is about 266.0231526760.

Adding to 18826011 its reverse (11062881), we get a palindrome (29888892).

The spelling of 18826011 in words is "eighteen million, eight hundred twenty-six thousand, eleven".