549506281122 has 90 divisors (see below), whose sum is σ = 1243190145483. Its totient is φ = 181416987576.

The previous prime is 549506281117. The next prime is 549506281171. The reversal of 549506281122 is 221182605945.

549506281122 is a `hidden beast` number, since 5 + 4 + 9 + 5 + 0 + 628 + 1 + 12 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 274753140561 + 274753140561 = 524169^2 + 524169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=524169.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1311470629 + ... + 1311471047.

Almost surely, 2^549506281122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549506281122

549506281122 is an abundant number, since it is smaller than the sum of its proper divisors (693683864361).

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

549506281122 is an frugal number, since it uses more digits than its factorization.

549506281122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 563 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 549506281122 in words is "five hundred forty-nine billion, five hundred six million, two hundred eighty-one thousand, one hundred twenty-two".