5485720866 has 16 divisors (see below), whose sum is σ = 10978917888. Its totient is φ = 1827327600.

The previous prime is 5485720859. The next prime is 5485720883. The reversal of 5485720866 is 6680275845.

It is a happy number.

It is an unprimeable number.

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, 301945 + ... + 319596.

It is an arithmetic number, because the mean of its divisors is an integer number (686182368).

Almost surely, 2^5485720866 is an apocalyptic number.

5485720866 is an abundant number, since it is smaller than the sum of its proper divisors (5493197022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5485720866 is a wasteful number, since it uses less digits than its factorization.

5485720866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623017.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The square root of 5485720866 is about 74065.6524037965. The cubic root of 5485720866 is about 1763.6452584154.

The spelling of 5485720866 in words is "five billion, four hundred eighty-five million, seven hundred twenty thousand, eight hundred sixty-six".