1818118008 has 256 divisors, whose sum is σ = 6045696000. Its totient is φ = 495331200.

The previous prime is 1818117949. The next prime is 1818118013. The reversal of 1818118008 is 8008118181.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3702643 + ... + 3703133.

It is an arithmetic number, because the mean of its divisors is an integer number (23616000).

Almost surely, 2^1818118008 is an apocalyptic number.

1818118008 is a gapful number since it is divisible by the number (18) 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 1818118008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3022848000).

1818118008 is an abundant number, since it is smaller than the sum of its proper divisors (4227577992).

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

1818118008 is a wasteful number, since it uses less digits than its factorization.

1818118008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 36.

The square root of 1818118008 is about 42639.3950238509. The cubic root of 1818118008 is about 1220.5081659807.

The spelling of 1818118008 in words is "one billion, eight hundred eighteen million, one hundred eighteen thousand, eight".