809722873080 has 1280 divisors, whose sum is σ = 3417334272000. Its totient is φ = 169305292800.

The previous prime is 809722873033. The next prime is 809722873133. The reversal of 809722873080 is 80378227908.

It is a super-2 number, since 2×809722873080² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 356862186 + ... + 356864454.

It is an arithmetic number, because the mean of its divisors is an integer number (2669792400).

Almost surely, 2^809722873080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 809722873080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1708667136000).

809722873080 is an abundant number, since it is smaller than the sum of its proper divisors (2607611398920).

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

809722873080 is a wasteful number, since it uses less digits than its factorization.

809722873080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2357 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 809722873080 in words is "eight hundred nine billion, seven hundred twenty-two million, eight hundred seventy-three thousand, eighty".