275381323249 has 4 divisors (see below), whose sum is σ = 275382464500. Its totient is φ = 275380182000.

The previous prime is 275381323247. The next prime is 275381323297. The reversal of 275381323249 is 942323183572.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 200869794225 + 74511529024 = 448185^2 + 272968^2 .

It is a cyclic number.

It is not a de Polignac number, because 275381323249 - 2¹ = 275381323247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275381323247) 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, 50874 + ... + 743875.

It is an arithmetic number, because the mean of its divisors is an integer number (68845616125).

Almost surely, 2^275381323249 is an apocalyptic number.

It is an amenable number.

275381323249 is a deficient number, since it is larger than the sum of its proper divisors (1141251).

275381323249 is an equidigital number, since it uses as much as digits as its factorization.

275381323249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141250.

The product of its digits is 2177280, while the sum is 49.

The spelling of 275381323249 in words is "two hundred seventy-five billion, three hundred eighty-one million, three hundred twenty-three thousand, two hundred forty-nine".