273428812801 has 4 divisors (see below), whose sum is σ = 273909356100. Its totient is φ = 272948269504.

The previous prime is 273428812751. The next prime is 273428812817. The reversal of 273428812801 is 108218824372.

It is a happy number.

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 140174611201 + 133254201600 = 374399^2 + 365040^2 .

It is a cyclic number.

It is not a de Polignac number, because 273428812801 - 2¹⁹ = 273428288513 is a prime.

It is a super-3 number, since 3×273428812801³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273428815801) 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, 240270796 + ... + 240271933.

It is an arithmetic number, because the mean of its divisors is an integer number (68477339025).

Almost surely, 2^273428812801 is an apocalyptic number.

It is an amenable number.

273428812801 is a deficient number, since it is larger than the sum of its proper divisors (480543299).

273428812801 is an equidigital number, since it uses as much as digits as its factorization.

273428812801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480543298.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 273428812801 in words is "two hundred seventy-three billion, four hundred twenty-eight million, eight hundred twelve thousand, eight hundred one".