806619534401 has 4 divisors (see below), whose sum is σ = 806717469012. Its totient is φ = 806521599792.

The previous prime is 806619534377. The next prime is 806619534499. The reversal of 806619534401 is 104435916608.

It is a Cunningham number, because it is equal to 898120²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 510830396176 + 295789138225 = 714724^2 + 543865^2 .

It is a cyclic number.

It is not a de Polignac number, because 806619534401 - 2¹⁸ = 806619272257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806219534401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48954950 + ... + 48971423.

It is an arithmetic number, because the mean of its divisors is an integer number (201679367253).

Almost surely, 2^806619534401 is an apocalyptic number.

It is an amenable number.

806619534401 is a deficient number, since it is larger than the sum of its proper divisors (97934611).

806619534401 is an equidigital number, since it uses as much as digits as its factorization.

806619534401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97934610.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 806619534401 in words is "eight hundred six billion, six hundred nineteen million, five hundred thirty-four thousand, four hundred one".