273228272257 has 4 divisors (see below), whose sum is σ = 274400926020. Its totient is φ = 272055618496.

The previous prime is 273228272249. The next prime is 273228272279. The reversal of 273228272257 is 752272822372.

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 63069290496 + 210158981761 = 251136^2 + 458431^2 .

It is a cyclic number.

It is not a de Polignac number, because 273228272257 - 2³ = 273228272249 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 273228272257.

It is not an unprimeable number, because it can be changed into a prime (273228272227) 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, 586326532 + ... + 586326997.

It is an arithmetic number, because the mean of its divisors is an integer number (68600231505).

Almost surely, 2^273228272257 is an apocalyptic number.

It is an amenable number.

273228272257 is a deficient number, since it is larger than the sum of its proper divisors (1172653763).

273228272257 is a wasteful number, since it uses less digits than its factorization.

273228272257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172653762.

The product of its digits is 2634240, while the sum is 49.

The spelling of 273228272257 in words is "two hundred seventy-three billion, two hundred twenty-eight million, two hundred seventy-two thousand, two hundred fifty-seven".