27730050261 has 4 divisors (see below), whose sum is σ = 36973400352. Its totient is φ = 18486700172.

The previous prime is 27730050247. The next prime is 27730050269. The reversal of 27730050261 is 16205003772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27730050261 - 2²¹ = 27727953109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730050269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4621675041 + ... + 4621675046.

It is an arithmetic number, because the mean of its divisors is an integer number (9243350088).

Almost surely, 2^27730050261 is an apocalyptic number.

It is an amenable number.

27730050261 is a deficient number, since it is larger than the sum of its proper divisors (9243350091).

27730050261 is an equidigital number, since it uses as much as digits as its factorization.

27730050261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9243350090.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 27730050261 in words is "twenty-seven billion, seven hundred thirty million, fifty thousand, two hundred sixty-one".