804153965449 has 4 divisors (see below), whose sum is σ = 804156685380. Its totient is φ = 804151245520.

The previous prime is 804153965443. The next prime is 804153965477. The reversal of 804153965449 is 944569351408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237397945225 + 566756020224 = 487235^2 + 752832^2 .

It is a cyclic number.

It is not a de Polignac number, because 804153965449 - 2¹⁷ = 804153834377 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 804153965393 and 804153965402.

It is not an unprimeable number, because it can be changed into a prime (804153965443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853654 + ... + 1528735.

It is an arithmetic number, because the mean of its divisors is an integer number (201039171345).

Almost surely, 2^804153965449 is an apocalyptic number.

It is an amenable number.

804153965449 is a deficient number, since it is larger than the sum of its proper divisors (2719931).

804153965449 is a wasteful number, since it uses less digits than its factorization.

804153965449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719930.

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 804153965449 in words is "eight hundred four billion, one hundred fifty-three million, nine hundred sixty-five thousand, four hundred forty-nine".