18709082112 has 208 divisors, whose sum is σ = 57350105600. Its totient is φ = 5313724416.

The previous prime is 18709082101. The next prime is 18709082123. The reversal of 18709082112 is 21128090781.

It is an interprime number because it is at equal distance from previous prime (18709082101) and next prime (18709082123).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17116638 + ... + 17117730.

Almost surely, 2^18709082112 is an apocalyptic number.

18709082112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18709082112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28675052800).

18709082112 is an abundant number, since it is smaller than the sum of its proper divisors (38641023488).

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

18709082112 is a wasteful number, since it uses less digits than its factorization.

18709082112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 39.

The spelling of 18709082112 in words is "eighteen billion, seven hundred nine million, eighty-two thousand, one hundred twelve".