18268703712 has 360 divisors, whose sum is σ = 63289134216. Its totient is φ = 5153766912.

The previous prime is 18268703711. The next prime is 18268703759. The reversal of 18268703712 is 21730786281.

18268703712 is a `hidden beast` number, since 18 + 268 + 7 + 0 + 371 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18268703711) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 10540798 + ... + 10542530.

Almost surely, 2^18268703712 is an apocalyptic number.

18268703712 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 18268703712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31644567108).

18268703712 is an abundant number, since it is smaller than the sum of its proper divisors (45020430504).

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

18268703712 is a wasteful number, since it uses less digits than its factorization.

18268703712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 18268703712 in words is "eighteen billion, two hundred sixty-eight million, seven hundred three thousand, seven hundred twelve".