549320325378 has 16 divisors (see below), whose sum is σ = 1198517073696. Its totient is φ = 166460704640.

The previous prime is 549320325353. The next prime is 549320325431. The reversal of 549320325378 is 873523023945.

It is a self number, because there is not a number n which added to its sum of digits gives 549320325378.

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, 4161517551 + ... + 4161517682.

It is an arithmetic number, because the mean of its divisors is an integer number (74907317106).

Almost surely, 2^549320325378 is an apocalyptic number.

549320325378 is an abundant number, since it is smaller than the sum of its proper divisors (649196748318).

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

549320325378 is a wasteful number, since it uses less digits than its factorization.

549320325378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8323035249.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 549320325378 in words is "five hundred forty-nine billion, three hundred twenty million, three hundred twenty-five thousand, three hundred seventy-eight".