272728733105 has 4 divisors (see below), whose sum is σ = 327274479732. Its totient is φ = 218182986480.

The previous prime is 272728733099. The next prime is 272728733113. The reversal of 272728733105 is 501337827272.

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 36723206689 + 236005526416 = 191633^2 + 485804^2 .

It is not a de Polignac number, because 272728733105 - 2⁴ = 272728733089 is a prime.

It is a super-2 number, since 2×272728733105² (a number of 24 digits) contains 22 as substring.

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 272728733105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27272873306 + ... + 27272873315.

It is an arithmetic number, because the mean of its divisors is an integer number (81818619933).

Almost surely, 2^272728733105 is an apocalyptic number.

It is an amenable number.

272728733105 is a deficient number, since it is larger than the sum of its proper divisors (54545746627).

272728733105 is an equidigital number, since it uses as much as digits as its factorization.

272728733105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54545746626.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 272728733105 in words is "two hundred seventy-two billion, seven hundred twenty-eight million, seven hundred thirty-three thousand, one hundred five".