821364576612 has 24 divisors (see below), whose sum is σ = 1916830622112. Its totient is φ = 273743438400.

The previous prime is 821364576611. The next prime is 821364576623. The reversal of 821364576612 is 216675463128.

It is not an unprimeable number, because it can be changed into a prime (821364576611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5517714 + ... + 5664617.

It is an arithmetic number, because the mean of its divisors is an integer number (79867942588).

Almost surely, 2^821364576612 is an apocalyptic number.

It is an amenable number.

821364576612 is an abundant number, since it is smaller than the sum of its proper divisors (1095466045500).

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

821364576612 is a wasteful number, since it uses less digits than its factorization.

821364576612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11188459 (or 11188457 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 821364576612 in words is "eight hundred twenty-one billion, three hundred sixty-four million, five hundred seventy-six thousand, six hundred twelve".