27550860261 has 8 divisors (see below), whose sum is σ = 36870033024. Its totient is φ = 18299463840.

The previous prime is 27550860199. The next prime is 27550860313. The reversal of 27550860261 is 16206805572.

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

It is not a de Polignac number, because 27550860261 - 2¹⁷ = 27550729189 is a prime.

It is a super-2 number, since 2×27550860261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550860061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16943136 + ... + 16944761.

It is an arithmetic number, because the mean of its divisors is an integer number (4608754128).

Almost surely, 2^27550860261 is an apocalyptic number.

It is an amenable number.

27550860261 is a deficient number, since it is larger than the sum of its proper divisors (9319172763).

27550860261 is a wasteful number, since it uses less digits than its factorization.

27550860261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33888171.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 27550860261 in words is "twenty-seven billion, five hundred fifty million, eight hundred sixty thousand, two hundred sixty-one".