918663909548 has 96 divisors (see below), whose sum is σ = 2056694976000. Its totient is φ = 355920398400.

The previous prime is 918663909547. The next prime is 918663909607. The reversal of 918663909548 is 845909366819.

It is not an unprimeable number, because it can be changed into a prime (918663909547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2531438 + ... + 2871498.

It is an arithmetic number, because the mean of its divisors is an integer number (21423906000).

Almost surely, 2^918663909548 is an apocalyptic number.

918663909548 is a gapful number since it is divisible by the number (98) 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 918663909548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028347488000).

918663909548 is an abundant number, since it is smaller than the sum of its proper divisors (1138031066452).

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

918663909548 is a wasteful number, since it uses less digits than its factorization.

918663909548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340276 (or 340260 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 68.

The spelling of 918663909548 in words is "nine hundred eighteen billion, six hundred sixty-three million, nine hundred nine thousand, five hundred forty-eight".