18281853696 has 288 divisors, whose sum is σ = 52003022848. Its totient is φ = 5693276160.

The previous prime is 18281853691. The next prime is 18281853701. The reversal of 18281853696 is 69635818281.

It is an interprime number because it is at equal distance from previous prime (18281853691) and next prime (18281853701).

It is not an unprimeable number, because it can be changed into a prime (18281853691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116444850 + ... + 116445006.

Almost surely, 2^18281853696 is an apocalyptic number.

18281853696 is a gapful number since it is divisible by the number (16) 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 18281853696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26001511424).

18281853696 is an abundant number, since it is smaller than the sum of its proper divisors (33721169152).

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

18281853696 is a wasteful number, since it uses less digits than its factorization.

18281853696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 333 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 57.

The spelling of 18281853696 in words is "eighteen billion, two hundred eighty-one million, eight hundred fifty-three thousand, six hundred ninety-six".