918697443818 has 48 divisors (see below), whose sum is σ = 1731419374272. Its totient is φ = 357867892800.

The previous prime is 918697443809. The next prime is 918697443871. The reversal of 918697443818 is 818344796819.

918697443818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9671213 + ... + 9765743.

It is an arithmetic number, because the mean of its divisors is an integer number (36071236964).

Almost surely, 2^918697443818 is an apocalyptic number.

918697443818 is a deficient number, since it is larger than the sum of its proper divisors (812721930454).

918697443818 is a wasteful number, since it uses less digits than its factorization.

918697443818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100299 (or 100288 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 68.

The spelling of 918697443818 in words is "nine hundred eighteen billion, six hundred ninety-seven million, four hundred forty-three thousand, eight hundred eighteen".