547820437249 has 4 divisors (see below), whose sum is σ = 548386953664. Its totient is φ = 547253920836.

The previous prime is 547820437189. The next prime is 547820437261. The reversal of 547820437249 is 942734028745.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942734028745 = 5 ⋅188546805749.

It is a cyclic number.

It is not a de Polignac number, because 547820437249 - 2¹⁹ = 547819912961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 547820437249.

It is not an unprimeable number, because it can be changed into a prime (547820437049) 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, 283256757 + ... + 283258690.

It is an arithmetic number, because the mean of its divisors is an integer number (137096738416).

Almost surely, 2^547820437249 is an apocalyptic number.

It is an amenable number.

547820437249 is a deficient number, since it is larger than the sum of its proper divisors (566516415).

547820437249 is an equidigital number, since it uses as much as digits as its factorization.

547820437249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566516414.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 547820437249 in words is "five hundred forty-seven billion, eight hundred twenty million, four hundred thirty-seven thousand, two hundred forty-nine".