260341509949 has 4 divisors (see below), whose sum is σ = 260774691100. Its totient is φ = 259908328800.

The previous prime is 260341509947. The next prime is 260341509959. The reversal of 260341509949 is 949905143062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949905143062 = 2 ⋅474952571531.

It can be written as a sum of positive squares in 2 ways, for example, as 130530464100 + 129811045849 = 361290^2 + 360293^2 .

It is a cyclic number.

It is not a de Polignac number, because 260341509949 - 2¹ = 260341509947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260341509896 and 260341509905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260341509943) 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, 216589674 + ... + 216590875.

It is an arithmetic number, because the mean of its divisors is an integer number (65193672775).

Almost surely, 2^260341509949 is an apocalyptic number.

It is an amenable number.

260341509949 is a deficient number, since it is larger than the sum of its proper divisors (433181151).

260341509949 is an equidigital number, since it uses as much as digits as its factorization.

260341509949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433181150.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 260341509949 in words is "two hundred sixty billion, three hundred forty-one million, five hundred nine thousand, nine hundred forty-nine".