260864915 has 16 divisors (see below), whose sum is σ = 332864640. Its totient is φ = 195578880.

The previous prime is 260864897. The next prime is 260864917. The reversal of 260864915 is 519468062.

It is a happy number.

It is not a de Polignac number, because 260864915 - 2¹⁴ = 260848531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260864917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13895 + ... + 26735.

It is an arithmetic number, because the mean of its divisors is an integer number (20804040).

Almost surely, 2^260864915 is an apocalyptic number.

260864915 is a deficient number, since it is larger than the sum of its proper divisors (71999725).

260864915 is a wasteful number, since it uses less digits than its factorization.

260864915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 260864915 is about 16151.3131045126. The cubic root of 260864915 is about 638.9573803600.

The spelling of 260864915 in words is "two hundred sixty million, eight hundred sixty-four thousand, nine hundred fifteen".