261108580258 has 32 divisors (see below), whose sum is σ = 407812838400. Its totient is φ = 125308886976.

The previous prime is 261108580219. The next prime is 261108580259. The reversal of 261108580258 is 852085801162.

It is not an unprimeable number, because it can be changed into a prime (261108580259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769735 + ... + 1055797.

It is an arithmetic number, because the mean of its divisors is an integer number (12744151200).

Almost surely, 2^261108580258 is an apocalyptic number.

261108580258 is a deficient number, since it is larger than the sum of its proper divisors (146704258142).

261108580258 is a wasteful number, since it uses less digits than its factorization.

261108580258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286306.

The product of its (nonzero) digits is 307200, while the sum is 46.

The spelling of 261108580258 in words is "two hundred sixty-one billion, one hundred eight million, five hundred eighty thousand, two hundred fifty-eight".