260138219472 has 60 divisors (see below), whose sum is σ = 731721353220. Its totient is φ = 86272564224.

The previous prime is 260138219431. The next prime is 260138219479. The reversal of 260138219472 is 274912831062.

260138219472 is a `hidden beast` number, since 2 + 601 + 38 + 2 + 1 + 9 + 4 + 7 + 2 = 666.

260138219472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 254705939856 + 5432279616 = 504684^2 + 73704^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260138219479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4556697 + ... + 4613432.

It is an arithmetic number, because the mean of its divisors is an integer number (12195355887).

Almost surely, 2^260138219472 is an apocalyptic number.

It is an amenable number.

260138219472 is an abundant number, since it is smaller than the sum of its proper divisors (471583133748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260138219472 is a wasteful number, since it uses less digits than its factorization.

260138219472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170340 (or 9170331 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 260138219472 in words is "two hundred sixty billion, one hundred thirty-eight million, two hundred nineteen thousand, four hundred seventy-two".