549812040685 has 16 divisors (see below), whose sum is σ = 660225335040. Its totient is φ = 439549165440.

The previous prime is 549812040667. The next prime is 549812040691. The reversal of 549812040685 is 586040218945.

It is not a de Polignac number, because 549812040685 - 2¹¹ = 549812038637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82316176 + ... + 82322854.

It is an arithmetic number, because the mean of its divisors is an integer number (41264083440).

Almost surely, 2^549812040685 is an apocalyptic number.

It is an amenable number.

549812040685 is a deficient number, since it is larger than the sum of its proper divisors (110413294355).

549812040685 is a wasteful number, since it uses less digits than its factorization.

549812040685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15468.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 549812040685 in words is "five hundred forty-nine billion, eight hundred twelve million, forty thousand, six hundred eighty-five".