13218287058 has 24 divisors (see below), whose sum is σ = 29627196300. Its totient is φ = 4254161184.

The previous prime is 13218287021. The next prime is 13218287107. The reversal of 13218287058 is 85078281231.

13218287058 is digitally balanced in base 5, 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 2 ways, for example, as 11852023689 + 1366263369 = 108867^2 + 36963^2 .

It is a super-2 number, since 2×13218287058² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12660673 + ... + 12661716.

Almost surely, 2^13218287058 is an apocalyptic number.

13218287058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13218287058 is an abundant number, since it is smaller than the sum of its proper divisors (16408909242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13218287058 is a wasteful number, since it uses less digits than its factorization.

13218287058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322426 (or 25322423 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 13218287058 in words is "thirteen billion, two hundred eighteen million, two hundred eighty-seven thousand, fifty-eight".