806796521280 has 560 divisors, whose sum is σ = 2938750657920. Its totient is φ = 210039091200.

The previous prime is 806796521273. The next prime is 806796521281. The reversal of 806796521280 is 82125697608.

806796521280 is a `hidden beast` number, since 8 + 0 + 6 + 7 + 96 + 521 + 28 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806796521281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 219773845 + ... + 219777515.

It is an arithmetic number, because the mean of its divisors is an integer number (5247769032).

Almost surely, 2^806796521280 is an apocalyptic number.

806796521280 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 806796521280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469375328960).

806796521280 is an abundant number, since it is smaller than the sum of its proper divisors (2131954136640).

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

806796521280 is a wasteful number, since it uses less digits than its factorization.

806796521280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 3881 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 806796521280 in words is "eight hundred six billion, seven hundred ninety-six million, five hundred twenty-one thousand, two hundred eighty".