261760580226 has 24 divisors (see below), whose sum is σ = 567185448960. Its totient is φ = 87247753656.

The previous prime is 261760580219. The next prime is 261760580261. The reversal of 261760580226 is 622085067162.

261760580226 is a `hidden beast` number, since 2 + 6 + 1 + 7 + 60 + 580 + 2 + 2 + 6 = 666.

261760580226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×261760580226² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 196950 + ... + 749873.

It is an arithmetic number, because the mean of its divisors is an integer number (23632727040).

Almost surely, 2^261760580226 is an apocalyptic number.

261760580226 is an abundant number, since it is smaller than the sum of its proper divisors (305424868734).

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

261760580226 is a wasteful number, since it uses less digits than its factorization.

261760580226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962190 (or 962187 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 261760580226 in words is "two hundred sixty-one billion, seven hundred sixty million, five hundred eighty thousand, two hundred twenty-six".