800646846539 has 2 divisors, whose sum is σ = 800646846540. Its totient is φ = 800646846538.

The previous prime is 800646846473. The next prime is 800646846577. The reversal of 800646846539 is 935648646008.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 800646846539 - 2¹⁶ = 800646781003 is a prime.

It is not a weakly prime, because it can be changed into another prime (800646846239) 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 as a sum of consecutive naturals, namely, 400323423269 + 400323423270.

It is an arithmetic number, because the mean of its divisors is an integer number (400323423270).

Almost surely, 2^800646846539 is an apocalyptic number.

800646846539 is a deficient number, since it is larger than the sum of its proper divisors (1).

800646846539 is an equidigital number, since it uses as much as digits as its factorization.

800646846539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 800646846539 in words is "eight hundred billion, six hundred forty-six million, eight hundred forty-six thousand, five hundred thirty-nine".