804400288861 has 8 divisors (see below), whose sum is σ = 884708665344. Its totient is φ = 726724974000.

The previous prime is 804400288837. The next prime is 804400288889. The reversal of 804400288861 is 168882004408.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 804400288861 - 2⁵ = 804400288829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804400288801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658264765 + ... + 658265986.

It is an arithmetic number, because the mean of its divisors is an integer number (110588583168).

Almost surely, 2^804400288861 is an apocalyptic number.

It is an amenable number.

804400288861 is a deficient number, since it is larger than the sum of its proper divisors (80308376483).

804400288861 is a wasteful number, since it uses less digits than its factorization.

804400288861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316530811.

The product of its (nonzero) digits is 786432, while the sum is 49.

The spelling of 804400288861 in words is "eight hundred four billion, four hundred million, two hundred eighty-eight thousand, eight hundred sixty-one".