261676125726301 has 16 divisors (see below), whose sum is σ = 307424897152128. Its totient is φ = 219587502254400.

The previous prime is 261676125726287. The next prime is 261676125726361. The reversal of 261676125726301 is 103627521676162.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 261676125726301 - 2¹⁹ = 261676125202013 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 (261676125726361) 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, 34726320 + ... + 41584486.

It is an arithmetic number, because the mean of its divisors is an integer number (19214056072008).

Almost surely, 2^{261676125726301} is an apocalyptic number.

It is an amenable number.

261676125726301 is a deficient number, since it is larger than the sum of its proper divisors (45748771425827).

261676125726301 is a wasteful number, since it uses less digits than its factorization.

261676125726301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125012.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 261676125726301 in words is "two hundred sixty-one trillion, six hundred seventy-six billion, one hundred twenty-five million, seven hundred twenty-six thousand, three hundred one".