27738085693 has 16 divisors (see below), whose sum is σ = 29713731520. Its totient is φ = 25816133376.

The previous prime is 27738085679. The next prime is 27738085787. The reversal of 27738085693 is 39658083772.

It is a cyclic number.

It is not a de Polignac number, because 27738085693 - 2⁹ = 27738085181 is a prime.

It is a super-2 number, since 2×27738085693² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27738085603) 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 15 ways as a sum of consecutive naturals, for example, 445621 + ... + 504037.

It is an arithmetic number, because the mean of its divisors is an integer number (1857108220).

Almost surely, 2^27738085693 is an apocalyptic number.

It is an amenable number.

27738085693 is a deficient number, since it is larger than the sum of its proper divisors (1975645827).

27738085693 is a wasteful number, since it uses less digits than its factorization.

27738085693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58876.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 27738085693 in words is "twenty-seven billion, seven hundred thirty-eight million, eighty-five thousand, six hundred ninety-three".