18352318680 has 192 divisors, whose sum is σ = 61919769600. Its totient is φ = 4709111040.

The previous prime is 18352318667. The next prime is 18352318717. The reversal of 18352318680 is 8681325381.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1993047 + ... + 2002233.

It is an arithmetic number, because the mean of its divisors is an integer number (322498800).

Almost surely, 2^18352318680 is an apocalyptic number.

18352318680 is a gapful number since it is divisible by the number (10) 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 18352318680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30959884800).

18352318680 is an abundant number, since it is smaller than the sum of its proper divisors (43567450920).

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

18352318680 is a wasteful number, since it uses less digits than its factorization.

18352318680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414 (or 9407 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 18352318680 in words is "eighteen billion, three hundred fifty-two million, three hundred eighteen thousand, six hundred eighty".