804402268641 has 6 divisors (see below), whose sum is σ = 1161914388050. Its totient is φ = 536268179088.

The previous prime is 804402268639. The next prime is 804402268651. The reversal of 804402268641 is 146862204408.

It can be written as a sum of positive squares in only one way, i.e., 461035568016 + 343366700625 = 678996^2 + 585975^2 .

It is not a de Polignac number, because 804402268641 - 2¹ = 804402268639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804402268651) 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 in 5 ways as a sum of consecutive naturals, for example, 44689014916 + ... + 44689014933.

Almost surely, 2^804402268641 is an apocalyptic number.

It is an amenable number.

804402268641 is a deficient number, since it is larger than the sum of its proper divisors (357512119409).

804402268641 is a wasteful number, since it uses less digits than its factorization.

804402268641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89378029855 (or 89378029852 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 804402268641 in words is "eight hundred four billion, four hundred two million, two hundred sixty-eight thousand, six hundred forty-one".