918444220125 has 64 divisors (see below), whose sum is σ = 1564525697280. Its totient is φ = 478338912000.

The previous prime is 918444220103. The next prime is 918444220159. The reversal of 918444220125 is 521022444819.

It is not a de Polignac number, because 918444220125 - 2¹¹ = 918444218077 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3035199 + ... + 3324051.

It is an arithmetic number, because the mean of its divisors is an integer number (24445714020).

Almost surely, 2^918444220125 is an apocalyptic number.

It is an amenable number.

918444220125 is a deficient number, since it is larger than the sum of its proper divisors (646081477155).

918444220125 is a wasteful number, since it uses less digits than its factorization.

918444220125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289071 (or 289061 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 918444220125 in words is "nine hundred eighteen billion, four hundred forty-four million, two hundred twenty thousand, one hundred twenty-five".