261014459887 has 8 divisors (see below), whose sum is σ = 261902086992. Its totient is φ = 260128315200.

The previous prime is 261014459861. The next prime is 261014459911. The reversal of 261014459887 is 788954410162.

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 261014459887 - 2¹¹ = 261014457839 is a prime.

It is a super-3 number, since 3×261014459887³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261014469887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17289 + ... + 722722.

It is an arithmetic number, because the mean of its divisors is an integer number (32737760874).

Almost surely, 2^261014459887 is an apocalyptic number.

261014459887 is a deficient number, since it is larger than the sum of its proper divisors (887627105).

261014459887 is an equidigital number, since it uses as much as digits as its factorization.

261014459887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741209.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 261014459887 in words is "two hundred sixty-one billion, fourteen million, four hundred fifty-nine thousand, eight hundred eighty-seven".