27641245215 has 32 divisors (see below), whose sum is σ = 44358215616. Its totient is φ = 14697999360.

The previous prime is 27641245213. The next prime is 27641245231. The reversal of 27641245215 is 51254214672.

It is not a de Polignac number, because 27641245215 - 2¹ = 27641245213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27641245211) 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 31 ways as a sum of consecutive naturals, for example, 8495529 + ... + 8498781.

It is an arithmetic number, because the mean of its divisors is an integer number (1386194238).

Almost surely, 2^27641245215 is an apocalyptic number.

27641245215 is a deficient number, since it is larger than the sum of its proper divisors (16716970401).

27641245215 is a wasteful number, since it uses less digits than its factorization.

27641245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779.

The product of its digits is 134400, while the sum is 39.

Adding to 27641245215 its reverse (51254214672), we get a palindrome (78895459887).

The spelling of 27641245215 in words is "twenty-seven billion, six hundred forty-one million, two hundred forty-five thousand, two hundred fifteen".