818802221688275 has 48 divisors (see below), whose sum is σ = 1114550403137280. Its totient is φ = 591765315062400.

The previous prime is 818802221688271. The next prime is 818802221688281. The reversal of 818802221688275 is 572886122208818.

It is not a de Polignac number, because 818802221688275 - 2² = 818802221688271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (818802221688271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359212049 + ... + 361484301.

It is an arithmetic number, because the mean of its divisors is an integer number (23219800065360).

Almost surely, 2^{818802221688275} is an apocalyptic number.

818802221688275 is a deficient number, since it is larger than the sum of its proper divisors (295748181449005).

818802221688275 is a wasteful number, since it uses less digits than its factorization.

818802221688275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280476 (or 2280471 counting only the distinct ones).

The product of its (nonzero) digits is 110100480, while the sum is 68.

The spelling of 818802221688275 in words is "eight hundred eighteen trillion, eight hundred two billion, two hundred twenty-one million, six hundred eighty-eight thousand, two hundred seventy-five".