804606086491 has 2 divisors, whose sum is σ = 804606086492. Its totient is φ = 804606086490.

The previous prime is 804606086441. The next prime is 804606086503. The reversal of 804606086491 is 194680606408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 804606086491 - 2²⁵ = 804572532059 is a prime.

It is not a weakly prime, because it can be changed into another prime (804606086411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402303043245 + 402303043246.

It is an arithmetic number, because the mean of its divisors is an integer number (402303043246).

Almost surely, 2^804606086491 is an apocalyptic number.

804606086491 is a deficient number, since it is larger than the sum of its proper divisors (1).

804606086491 is an equidigital number, since it uses as much as digits as its factorization.

804606086491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 804606086491 in words is "eight hundred four billion, six hundred six million, eighty-six thousand, four hundred ninety-one".