27747520613 has 8 divisors (see below), whose sum is σ = 28368181632. Its totient is φ = 27128121696.

The previous prime is 27747520583. The next prime is 27747520621. The reversal of 27747520613 is 31602574772.

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 27747520613 - 2⁸ = 27747520357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27747520673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270995 + ... + 359072.

It is an arithmetic number, because the mean of its divisors is an integer number (3546022704).

Almost surely, 2^27747520613 is an apocalyptic number.

It is an amenable number.

27747520613 is a deficient number, since it is larger than the sum of its proper divisors (620661019).

27747520613 is an equidigital number, since it uses as much as digits as its factorization.

27747520613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631051.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 27747520613 in words is "twenty-seven billion, seven hundred forty-seven million, five hundred twenty thousand, six hundred thirteen".