918767816 has 16 divisors (see below), whose sum is σ = 1723373340. Its totient is φ = 459201600.

The previous prime is 918767813. The next prime is 918767827. The reversal of 918767816 is 618767819.

It can be written as a sum of positive squares in 2 ways, for example, as 890783716 + 27984100 = 29846^2 + 5290^2 .

It is not an unprimeable number, because it can be changed into a prime (918767813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35 + ... + 42866.

Almost surely, 2^918767816 is an apocalyptic number.

It is an amenable number.

918767816 is a deficient number, since it is larger than the sum of its proper divisors (804605524).

918767816 is a wasteful number, since it uses less digits than its factorization.

918767816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45584 (or 45580 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The square root of 918767816 is about 30311.1830188134. The cubic root of 918767816 is about 972.1544262876.

The spelling of 918767816 in words is "nine hundred eighteen million, seven hundred sixty-seven thousand, eight hundred sixteen".