802810003081 has 2 divisors, whose sum is σ = 802810003082. Its totient is φ = 802810003080.

The previous prime is 802810003069. The next prime is 802810003147. The reversal of 802810003081 is 180300018208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558694956681 + 244115046400 = 747459^2 + 494080^2 .

It is a cyclic number.

It is not a de Polignac number, because 802810003081 - 2²³ = 802801614473 is a prime.

It is a super-2 number, since 2×802810003081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (802810003031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401405001540 + 401405001541.

It is an arithmetic number, because the mean of its divisors is an integer number (401405001541).

Almost surely, 2^802810003081 is an apocalyptic number.

It is an amenable number.

802810003081 is a deficient number, since it is larger than the sum of its proper divisors (1).

802810003081 is an equidigital number, since it uses as much as digits as its factorization.

802810003081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 31.

The spelling of 802810003081 in words is "eight hundred two billion, eight hundred ten million, three thousand, eighty-one".