918479520000 has 1080 divisors, whose sum is σ = 3949085263200. Its totient is φ = 209889792000.

The previous prime is 918479519999. The next prime is 918479520031. The reversal of 918479520000 is 25974819.

It is a tau number, because it is divible by the number of its divisors (1080).

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 211677831 + ... + 211682169.

Almost surely, 2^918479520000 is an apocalyptic number.

918479520000 is a gapful number since it is divisible by the number (90) 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 918479520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1974542631600).

918479520000 is an abundant number, since it is smaller than the sum of its proper divisors (3030605743200).

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

918479520000 is an equidigital number, since it uses as much as digits as its factorization.

918479520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4398 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 918479520000 in words is "nine hundred eighteen billion, four hundred seventy-nine million, five hundred twenty thousand".