804194486281 has 2 divisors, whose sum is σ = 804194486282. Its totient is φ = 804194486280.

The previous prime is 804194486257. The next prime is 804194486317. The reversal of 804194486281 is 182684491408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467150378256 + 337044108025 = 683484^2 + 580555^2 .

It is a cyclic number.

It is not a de Polignac number, because 804194486281 - 2⁹ = 804194485769 is a prime.

It is a super-2 number, since 2×804194486281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804194486981) 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, 402097243140 + 402097243141.

It is an arithmetic number, because the mean of its divisors is an integer number (402097243141).

Almost surely, 2^804194486281 is an apocalyptic number.

It is an amenable number.

804194486281 is a deficient number, since it is larger than the sum of its proper divisors (1).

804194486281 is an equidigital number, since it uses as much as digits as its factorization.

804194486281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3538944, while the sum is 55.

The spelling of 804194486281 in words is "eight hundred four billion, one hundred ninety-four million, four hundred eighty-six thousand, two hundred eighty-one".