549291800005 has 8 divisors (see below), whose sum is σ = 709854018552. Its totient is φ = 405630867648.

The previous prime is 549291799997. The next prime is 549291800011. The reversal of 549291800005 is 500008192945.

It can be written as a sum of positive squares in 4 ways, for example, as 15635251681 + 533656548324 = 125041^2 + 730518^2 .

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 549291800005 - 2³ = 549291799997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4225321474 + ... + 4225321603.

It is an arithmetic number, because the mean of its divisors is an integer number (88731752319).

Almost surely, 2^549291800005 is an apocalyptic number.

It is an amenable number.

549291800005 is a deficient number, since it is larger than the sum of its proper divisors (160562218547).

549291800005 is a wasteful number, since it uses less digits than its factorization.

549291800005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8450643095.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 549291800005 in words is "five hundred forty-nine billion, two hundred ninety-one million, eight hundred thousand, five".