273878475556 has 81 divisors (see below), whose sum is σ = 577875044019. Its totient is φ = 113241104256.

The previous prime is 273878475511. The next prime is 273878475581. The reversal of 273878475556 is 655574878372.

The square root of 273878475556 is 523334.

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

It can be written as a sum of positive squares in 4 ways, for example, as 34052797156 + 239825678400 = 184534^2 + 489720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 273878475491 and 273878475500.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 212472960 + ... + 212474248.

Almost surely, 2^273878475556 is an apocalyptic number.

273878475556 is the 523334-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273878475556

273878475556 is an abundant number, since it is smaller than the sum of its proper divisors (303996568463).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273878475556 is an equidigital number, since it uses as much as digits as its factorization.

273878475556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654 (or 1327 counting only the distinct ones).

The product of its digits is 395136000, while the sum is 67.

The spelling of 273878475556 in words is "two hundred seventy-three billion, eight hundred seventy-eight million, four hundred seventy-five thousand, five hundred fifty-six".