5478805891 has 8 divisors (see below), whose sum is σ = 5903553824. Its totient is φ = 5054529600.

The previous prime is 5478805879. The next prime is 5478805897. The reversal of 5478805891 is 1985088745.

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 5478805891 - 2⁵ = 5478805859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478805897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93591 + ... + 140416.

It is an arithmetic number, because the mean of its divisors is an integer number (737944228).

Almost surely, 2^5478805891 is an apocalyptic number.

5478805891 is a deficient number, since it is larger than the sum of its proper divisors (424747933).

5478805891 is a wasteful number, since it uses less digits than its factorization.

5478805891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235821.

The product of its (nonzero) digits is 3225600, while the sum is 55.

The square root of 5478805891 is about 74018.9562949924. The cubic root of 5478805891 is about 1762.9038978848.

The spelling of 5478805891 in words is "five billion, four hundred seventy-eight million, eight hundred five thousand, eight hundred ninety-one".