273164768123809 has 3 divisors (see below), whose sum is σ = 273164784651507. Its totient is φ = 273164751596112.

The previous prime is 273164768123783. The next prime is 273164768123861. The reversal of 273164768123809 is 908321867461372.

The square root of 273164768123809 is 16527697.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 16545898552225 + 256618869571584 = 4067665^2 + 16019328^2 .

It is not a de Polignac number, because 273164768123809 - 2²⁷ = 273164633906081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273164768123309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8263849 + ... + 24791545.

It is an arithmetic number, because the mean of its divisors is an integer number (91054928217169).

Almost surely, 2^{273164768123809} is an apocalyptic number.

273164768123809 is the 16527697-th square number.

273164768123809 is the 8263849-th centered octagonal number.

It is an amenable number.

273164768123809 is a deficient number, since it is larger than the sum of its proper divisors (16527698).

273164768123809 is an frugal number, since it uses more digits than its factorization.

273164768123809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33055394 (or 16527697 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 67.

The spelling of 273164768123809 in words is "two hundred seventy-three trillion, one hundred sixty-four billion, seven hundred sixty-eight million, one hundred twenty-three thousand, eight hundred nine".