27147707757 has 12 divisors (see below), whose sum is σ = 39298423164. Its totient is φ = 18059209920.

The previous prime is 27147707723. The next prime is 27147707761. The reversal of 27147707757 is 75770774172.

It can be written as a sum of positive squares in 2 ways, for example, as 13018581801 + 14129125956 = 114099^2 + 118866^2 .

It is not a de Polignac number, because 27147707757 - 2⁶ = 27147707693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27147707707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3267448 + ... + 3275745.

It is an arithmetic number, because the mean of its divisors is an integer number (3274868597).

Almost surely, 2^27147707757 is an apocalyptic number.

It is an amenable number.

27147707757 is a deficient number, since it is larger than the sum of its proper divisors (12150715407).

27147707757 is a wasteful number, since it uses less digits than its factorization.

27147707757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543660 (or 6543657 counting only the distinct ones).

The product of its (nonzero) digits is 4705960, while the sum is 54.

The spelling of 27147707757 in words is "twenty-seven billion, one hundred forty-seven million, seven hundred seven thousand, seven hundred fifty-seven".