273313566436 has 27 divisors (see below), whose sum is σ = 489761213571. Its totient is φ = 133456761144.

The previous prime is 273313566433. The next prime is 273313566437. The reversal of 273313566436 is 634665313372.

It is a happy number.

The square root of 273313566436 is 522794.

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

273313566436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 273313566436.

It is not an unprimeable number, because it can be changed into a prime (273313566433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44957245 + ... + 44963323.

Almost surely, 2^273313566436 is an apocalyptic number.

273313566436 is the 522794-th square number.

It is an amenable number.

273313566436 is a deficient number, since it is larger than the sum of its proper divisors (216447647135).

273313566436 is an frugal number, since it uses more digits than its factorization.

273313566436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12248 (or 6124 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 49.

Multiplying 273313566436 by its sum of digits (49), we get a square (13392364755364 = 3659558²).

The spelling of 273313566436 in words is "two hundred seventy-three billion, three hundred thirteen million, five hundred sixty-six thousand, four hundred thirty-six".