10818421779 has 32 divisors (see below), whose sum is σ = 16020737280. Its totient is φ = 6438185600.

The previous prime is 10818421777. The next prime is 10818421879. The reversal of 10818421779 is 97712481801.

It is not a de Polignac number, because 10818421779 - 2¹ = 10818421777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10818421777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2063149 + ... + 2068385.

It is an arithmetic number, because the mean of its divisors is an integer number (500648040).

Almost surely, 2^10818421779 is an apocalyptic number.

10818421779 is a deficient number, since it is larger than the sum of its proper divisors (5202315501).

10818421779 is a wasteful number, since it uses less digits than its factorization.

10818421779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371.

The product of its (nonzero) digits is 225792, while the sum is 48.

The spelling of 10818421779 in words is "ten billion, eight hundred eighteen million, four hundred twenty-one thousand, seven hundred seventy-nine".