27591913241 has 4 divisors (see below), whose sum is σ = 27595211472. Its totient is φ = 27588615012.

The previous prime is 27591913231. The next prime is 27591913249. The reversal of 27591913241 is 14231919572.

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 a de Polignac number, because none of the positive numbers 2^k-27591913241 is a prime.

It is a super-2 number, since 2×27591913241² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27591913192 and 27591913201.

It is not an unprimeable number, because it can be changed into a prime (27591913249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636535 + ... + 1653308.

It is an arithmetic number, because the mean of its divisors is an integer number (6898802868).

Almost surely, 2^27591913241 is an apocalyptic number.

It is an amenable number.

27591913241 is a deficient number, since it is larger than the sum of its proper divisors (3298231).

27591913241 is an equidigital number, since it uses as much as digits as its factorization.

27591913241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298230.

The product of its digits is 136080, while the sum is 44.

The spelling of 27591913241 in words is "twenty-seven billion, five hundred ninety-one million, nine hundred thirteen thousand, two hundred forty-one".