804639954822 has 96 divisors (see below), whose sum is σ = 1819228459776. Its totient is φ = 236908203840.

The previous prime is 804639954809. The next prime is 804639954829. The reversal of 804639954822 is 228459936408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804639954829) 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, 19508073 + ... + 19549275.

It is an arithmetic number, because the mean of its divisors is an integer number (18950296456).

Almost surely, 2^804639954822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804639954822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909614229888).

804639954822 is an abundant number, since it is smaller than the sum of its proper divisors (1014588504954).

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

804639954822 is a wasteful number, since it uses less digits than its factorization.

804639954822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41994 (or 41983 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 804639954822 in words is "eight hundred four billion, six hundred thirty-nine million, nine hundred fifty-four thousand, eight hundred twenty-two".