547339221217 has 4 divisors (see below), whose sum is σ = 547605827860. Its totient is φ = 547072614576.

The previous prime is 547339221211. The next prime is 547339221229. The reversal of 547339221217 is 712122933745.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202395613456 + 344943607761 = 449884^2 + 587319^2 .

It is a cyclic number.

It is not a de Polignac number, because 547339221217 - 2¹⁵ = 547339188449 is a prime.

It is a super-2 number, since 2×547339221217² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547339221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133300242 + ... + 133304347.

It is an arithmetic number, because the mean of its divisors is an integer number (136901456965).

Almost surely, 2^547339221217 is an apocalyptic number.

It is an amenable number.

547339221217 is a deficient number, since it is larger than the sum of its proper divisors (266606643).

547339221217 is a wasteful number, since it uses less digits than its factorization.

547339221217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266606642.

The product of its digits is 635040, while the sum is 46.

The spelling of 547339221217 in words is "five hundred forty-seven billion, three hundred thirty-nine million, two hundred twenty-one thousand, two hundred seventeen".