818784676364 has 12 divisors (see below), whose sum is σ = 1517159841624. Its totient is φ = 385310435904.

The previous prime is 818784676363. The next prime is 818784676433. The reversal of 818784676364 is 463676487818.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (68), and also a Moran number because the ratio is a prime number: 12040951123 = 818784676364 / (8 + 1 + 8 + 7 + 8 + 4 + 6 + 7 + 6 + 3 + 6 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 818784676294 and 818784676303.

It is not an unprimeable number, because it can be changed into a prime (818784676363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020475494 + ... + 6020475629.

It is an arithmetic number, because the mean of its divisors is an integer number (126429986802).

Almost surely, 2^818784676364 is an apocalyptic number.

It is an amenable number.

818784676364 is a deficient number, since it is larger than the sum of its proper divisors (698375165260).

818784676364 is a wasteful number, since it uses less digits than its factorization.

818784676364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040951144 (or 12040951142 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 68.

The spelling of 818784676364 in words is "eight hundred eighteen billion, seven hundred eighty-four million, six hundred seventy-six thousand, three hundred sixty-four".