804358343561 has 4 divisors (see below), whose sum is σ = 808170468624. Its totient is φ = 800546218500.

The previous prime is 804358343531. The next prime is 804358343629. The reversal of 804358343561 is 165343853408.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 804358343561 - 2¹⁴ = 804358327177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804358343531) 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 in 3 ways as a sum of consecutive naturals, for example, 1906062215 + ... + 1906062636.

It is an arithmetic number, because the mean of its divisors is an integer number (202042617156).

Almost surely, 2^804358343561 is an apocalyptic number.

It is an amenable number.

804358343561 is a deficient number, since it is larger than the sum of its proper divisors (3812125063).

804358343561 is a wasteful number, since it uses less digits than its factorization.

804358343561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812125062.

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 804358343561 in words is "eight hundred four billion, three hundred fifty-eight million, three hundred forty-three thousand, five hundred sixty-one".