820008674822 has 4 divisors (see below), whose sum is σ = 1230013012236. Its totient is φ = 410004337410.

The previous prime is 820008674773. The next prime is 820008674827. The reversal of 820008674822 is 228476800028.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820008674827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205002168704 + ... + 205002168707.

It is an arithmetic number, because the mean of its divisors is an integer number (307503253059).

Almost surely, 2^820008674822 is an apocalyptic number.

820008674822 is a deficient number, since it is larger than the sum of its proper divisors (410004337414).

820008674822 is a wasteful number, since it uses less digits than its factorization.

820008674822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410004337413.

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 820008674822 in words is "eight hundred twenty billion, eight million, six hundred seventy-four thousand, eight hundred twenty-two".