918216682428 has 48 divisors (see below), whose sum is σ = 2255364849920. Its totient is φ = 289950845184.

The previous prime is 918216682421. The next prime is 918216682483. The reversal of 918216682428 is 824286612819.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918216682421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6354276 + ... + 6497172.

Almost surely, 2^918216682428 is an apocalyptic number.

It is an amenable number.

918216682428 is an abundant number, since it is smaller than the sum of its proper divisors (1337148167492).

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

918216682428 is a wasteful number, since it uses less digits than its factorization.

918216682428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171106 (or 171104 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 57.

The spelling of 918216682428 in words is "nine hundred eighteen billion, two hundred sixteen million, six hundred eighty-two thousand, four hundred twenty-eight".