27907707137 has 8 divisors (see below), whose sum is σ = 28201523112. Its totient is φ = 27614016000.

The previous prime is 27907707131. The next prime is 27907707197. The reversal of 27907707137 is 73170770972.

It is a Cunningham number, because it is equal to 167056²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4694442256 + 23213264881 = 68516^2 + 152359^2 .

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 27907707137 - 2¹² = 27907703041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27907707131) 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 7 ways as a sum of consecutive naturals, for example, 458387 + ... + 515687.

It is an arithmetic number, because the mean of its divisors is an integer number (3525190389).

Almost surely, 2^27907707137 is an apocalyptic number.

It is an amenable number.

27907707137 is a deficient number, since it is larger than the sum of its proper divisors (293815975).

27907707137 is an equidigital number, since it uses as much as digits as its factorization.

27907707137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62419.

The product of its (nonzero) digits is 907578, while the sum is 50.

The spelling of 27907707137 in words is "twenty-seven billion, nine hundred seven million, seven hundred seven thousand, one hundred thirty-seven".