809463473280 has 1536 divisors, whose sum is σ = 3663489772800. Its totient is φ = 167029309440.

The previous prime is 809463473279. The next prime is 809463473303. The reversal of 809463473280 is 82374364908.

809463473280 is a `hidden beast` number, since 8 + 0 + 94 + 6 + 3 + 473 + 2 + 80 = 666.

It is a super-2 number, since 2×809463473280² (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 an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2170143174 + ... + 2170143546.

Almost surely, 2^809463473280 is an apocalyptic number.

809463473280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 809463473280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831744886400).

809463473280 is an abundant number, since it is smaller than the sum of its proper divisors (2854026299520).

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

809463473280 is a wasteful number, since it uses less digits than its factorization.

809463473280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 809463473280 in words is "eight hundred nine billion, four hundred sixty-three million, four hundred seventy-three thousand, two hundred eighty".