260484951917 has 4 divisors (see below), whose sum is σ = 261622441020. Its totient is φ = 259347462816.

The previous prime is 260484951841. The next prime is 260484951919. The reversal of 260484951917 is 719159484062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 209019038596 + 51465913321 = 457186^2 + 226861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260484951917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260484951919) 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 3 ways as a sum of consecutive naturals, for example, 568744208 + ... + 568744665.

It is an arithmetic number, because the mean of its divisors is an integer number (65405610255).

Almost surely, 2^260484951917 is an apocalyptic number.

It is an amenable number.

260484951917 is a deficient number, since it is larger than the sum of its proper divisors (1137489103).

260484951917 is a wasteful number, since it uses less digits than its factorization.

260484951917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137489102.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 260484951917 in words is "two hundred sixty billion, four hundred eighty-four million, nine hundred fifty-one thousand, nine hundred seventeen".