2548546312209 has 4 divisors (see below), whose sum is σ = 3398061749616. Its totient is φ = 1699030874804.

The previous prime is 2548546312199. The next prime is 2548546312217. The reversal of 2548546312209 is 9022136458452.

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.

It is a cyclic number.

It is not a de Polignac number, because 2548546312209 - 2²⁰ = 2548545263633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2548546312229) 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, 424757718699 + ... + 424757718704.

It is an arithmetic number, because the mean of its divisors is an integer number (849515437404).

Almost surely, 2^{2548546312209} is an apocalyptic number.

It is an amenable number.

2548546312209 is a deficient number, since it is larger than the sum of its proper divisors (849515437407).

2548546312209 is an equidigital number, since it uses as much as digits as its factorization.

2548546312209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849515437406.

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 2548546312209 in words is "two trillion, five hundred forty-eight billion, five hundred forty-six million, three hundred twelve thousand, two hundred nine".