18800835318 has 20 divisors (see below), whose sum is σ = 42127798020. Its totient is φ = 6266945052.

The previous prime is 18800835311. The next prime is 18800835353. The reversal of 18800835318 is 81353800881.

It is a happy number.

It is a super-3 number, since 3×18800835318³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18800835311) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 58027108 + ... + 58027431.

It is an arithmetic number, because the mean of its divisors is an integer number (2106389901).

Almost surely, 2^18800835318 is an apocalyptic number.

18800835318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18800835318 is an abundant number, since it is smaller than the sum of its proper divisors (23326962702).

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

18800835318 is a wasteful number, since it uses less digits than its factorization.

18800835318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116054553 (or 116054544 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 18800835318 in words is "eighteen billion, eight hundred million, eight hundred thirty-five thousand, three hundred eighteen".