261647574012223 has 8 divisors (see below), whose sum is σ = 299041325573760. Its totient is φ = 224257704126360.

The previous prime is 261647574012221. The next prime is 261647574012277. The reversal of 261647574012223 is 322210475746162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261647574012223 - 2¹ = 261647574012221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261647574012221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970274473 + ... + 970544098.

It is an arithmetic number, because the mean of its divisors is an integer number (37380165696720).

Almost surely, 2^{261647574012223} is an apocalyptic number.

261647574012223 is a deficient number, since it is larger than the sum of its proper divisors (37393751561537).

261647574012223 is a wasteful number, since it uses less digits than its factorization.

261647574012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940837837.

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 261647574012223 in words is "two hundred sixty-one trillion, six hundred forty-seven billion, five hundred seventy-four million, twelve thousand, two hundred twenty-three".