918154005440 has 224 divisors, whose sum is σ = 2614654525824. Its totient is φ = 300507217920.

The previous prime is 918154005401. The next prime is 918154005481. The reversal of 918154005440 is 44500451819.

918154005440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4288130 + ... + 4497150.

Almost surely, 2^918154005440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 918154005440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307327262912).

918154005440 is an abundant number, since it is smaller than the sum of its proper divisors (1696500520384).

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

918154005440 is a wasteful number, since it uses less digits than its factorization.

918154005440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209135 (or 209125 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 918154005440 in words is "nine hundred eighteen billion, one hundred fifty-four million, five thousand, four hundred forty".