260728864617 has 16 divisors (see below), whose sum is σ = 374416759808. Its totient is φ = 160432738560.

The previous prime is 260728864609. The next prime is 260728864621. The reversal of 260728864617 is 716468827062.

It is not a de Polignac number, because 260728864617 - 2³ = 260728864609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260728164617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78648 + ... + 726390.

It is an arithmetic number, because the mean of its divisors is an integer number (23401047488).

Almost surely, 2^260728864617 is an apocalyptic number.

It is an amenable number.

260728864617 is a deficient number, since it is larger than the sum of its proper divisors (113687895191).

260728864617 is a wasteful number, since it uses less digits than its factorization.

260728864617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658080.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 260728864617 in words is "two hundred sixty billion, seven hundred twenty-eight million, eight hundred sixty-four thousand, six hundred seventeen".