18572827086 has 96 divisors (see below), whose sum is σ = 44500959360. Its totient is φ = 5551540800.

The previous prime is 18572827057. The next prime is 18572827087. The reversal of 18572827086 is 68072827581.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18572827087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4485205 + ... + 4489343.

It is an arithmetic number, because the mean of its divisors is an integer number (463551660).

Almost surely, 2^18572827086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18572827086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22250479680).

18572827086 is an abundant number, since it is smaller than the sum of its proper divisors (25928132274).

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

18572827086 is a wasteful number, since it uses less digits than its factorization.

18572827086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462 (or 4459 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 18572827086 in words is "eighteen billion, five hundred seventy-two million, eight hundred twenty-seven thousand, eighty-six".