549138920298 has 16 divisors (see below), whose sum is σ = 1098295251840. Its totient is φ = 183043404896.

The previous prime is 549138920251. The next prime is 549138920321. The reversal of 549138920298 is 892029831945.

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, 295890 + ... + 1088957.

It is an arithmetic number, because the mean of its divisors is an integer number (68643453240).

Almost surely, 2^549138920298 is an apocalyptic number.

549138920298 is an abundant number, since it is smaller than the sum of its proper divisors (549156331542).

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

549138920298 is a wasteful number, since it uses less digits than its factorization.

549138920298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450941.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 549138920298 in words is "five hundred forty-nine billion, one hundred thirty-eight million, nine hundred twenty thousand, two hundred ninety-eight".