806494831613 has 2 divisors, whose sum is σ = 806494831614. Its totient is φ = 806494831612.

The previous prime is 806494831591. The next prime is 806494831621. The reversal of 806494831613 is 316138494608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795168125284 + 11326706329 = 891722^2 + 106427^2 .

It is a cyclic number.

It is not a de Polignac number, because 806494831613 - 2²⁰ = 806493783037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806494831213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403247415806 + 403247415807.

It is an arithmetic number, because the mean of its divisors is an integer number (403247415807).

Almost surely, 2^806494831613 is an apocalyptic number.

It is an amenable number.

806494831613 is a deficient number, since it is larger than the sum of its proper divisors (1).

806494831613 is an equidigital number, since it uses as much as digits as its factorization.

806494831613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 806494831613 in words is "eight hundred six billion, four hundred ninety-four million, eight hundred thirty-one thousand, six hundred thirteen".