852658821200 has 30 divisors (see below), whose sum is σ = 2048512818894. Its totient is φ = 341063528320.

The previous prime is 852658821187. The next prime is 852658821241. The reversal of 852658821200 is 2128856258.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1261386256 + 851397434944 = 35516^2 + 922712^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1065823127 + ... + 1065823926.

Almost surely, 2^852658821200 is an apocalyptic number.

852658821200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

852658821200 is an abundant number, since it is smaller than the sum of its proper divisors (1195853997694).

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

852658821200 is a wasteful number, since it uses less digits than its factorization.

852658821200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131647071 (or 2131647060 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 47.

The spelling of 852658821200 in words is "eight hundred fifty-two billion, six hundred fifty-eight million, eight hundred twenty-one thousand, two hundred".