261472613271 has 8 divisors (see below), whose sum is σ = 348636422640. Its totient is φ = 174311939712.

The previous prime is 261472613209. The next prime is 261472613279. The reversal of 261472613271 is 172316274162.

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

It is not a de Polignac number, because 261472613271 - 2¹⁵ = 261472580503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261472613279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581956 + ... + 928233.

It is an arithmetic number, because the mean of its divisors is an integer number (43579552830).

Almost surely, 2^261472613271 is an apocalyptic number.

261472613271 is a deficient number, since it is larger than the sum of its proper divisors (87163809369).

261472613271 is a wasteful number, since it uses less digits than its factorization.

261472613271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567905.

The product of its digits is 169344, while the sum is 42.

The spelling of 261472613271 in words is "two hundred sixty-one billion, four hundred seventy-two million, six hundred thirteen thousand, two hundred seventy-one".