18263285100 has 216 divisors, whose sum is σ = 58964903088. Its totient is φ = 4724697600.

The previous prime is 18263285093. The next prime is 18263285111. The reversal of 18263285100 is 158236281.

It is a happy number.

18263285100 is a `hidden beast` number, since 1 + 8 + 2 + 632 + 8 + 5 + 10 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16349742 + ... + 16350858.

Almost surely, 2^18263285100 is an apocalyptic number.

18263285100 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 18263285100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29482451544).

18263285100 is an abundant number, since it is smaller than the sum of its proper divisors (40701617988).

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

18263285100 is a wasteful number, since it uses less digits than its factorization.

18263285100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 18263285100 in words is "eighteen billion, two hundred sixty-three million, two hundred eighty-five thousand, one hundred".