27685323101 has 2 divisors, whose sum is σ = 27685323102. Its totient is φ = 27685323100.

The previous prime is 27685323023. The next prime is 27685323179. The reversal of 27685323101 is 10132358672.

It is a balanced prime because it is at equal distance from previous prime (27685323023) and next prime (27685323179).

It can be written as a sum of positive squares in only one way, i.e., 20612344900 + 7072978201 = 143570^2 + 84101^2 .

It is a cyclic number.

It is not a de Polignac number, because 27685323101 - 2¹⁸ = 27685060957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27685323401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13842661550 + 13842661551.

It is an arithmetic number, because the mean of its divisors is an integer number (13842661551).

Almost surely, 2^27685323101 is an apocalyptic number.

It is an amenable number.

27685323101 is a deficient number, since it is larger than the sum of its proper divisors (1).

27685323101 is an equidigital number, since it uses as much as digits as its factorization.

27685323101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 27685323101 in words is "twenty-seven billion, six hundred eighty-five million, three hundred twenty-three thousand, one hundred one".