260478825485 has 48 divisors (see below), whose sum is σ = 332081784720. Its totient is φ = 195905740800.

The previous prime is 260478825479. The next prime is 260478825487. The reversal of 260478825485 is 584528874062.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 236980081636 + 23498743849 = 486806^2 + 153293^2 .

It is not a de Polignac number, because 260478825485 - 2¹⁰ = 260478824461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260478825487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214738739 + ... + 214739951.

It is an arithmetic number, because the mean of its divisors is an integer number (6918370515).

Almost surely, 2^260478825485 is an apocalyptic number.

It is an amenable number.

260478825485 is a deficient number, since it is larger than the sum of its proper divisors (71602959235).

260478825485 is a wasteful number, since it uses less digits than its factorization.

260478825485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 59.

The spelling of 260478825485 in words is "two hundred sixty billion, four hundred seventy-eight million, eight hundred twenty-five thousand, four hundred eighty-five".