260234729809 has 4 divisors (see below), whose sum is σ = 260921365360. Its totient is φ = 259548094260.

The previous prime is 260234729801. The next prime is 260234729831. The reversal of 260234729809 is 908927432062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260234729809 - 2³ = 260234729801 is a prime.

It is a super-2 number, since 2×260234729809² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260234729801) 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, 343317207 + ... + 343317964.

It is an arithmetic number, because the mean of its divisors is an integer number (65230341340).

Almost surely, 2^260234729809 is an apocalyptic number.

It is an amenable number.

260234729809 is a deficient number, since it is larger than the sum of its proper divisors (686635551).

260234729809 is an equidigital number, since it uses as much as digits as its factorization.

260234729809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686635550.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 260234729809 in words is "two hundred sixty billion, two hundred thirty-four million, seven hundred twenty-nine thousand, eight hundred nine".