27685323023 has 2 divisors, whose sum is σ = 27685323024. Its totient is φ = 27685323022.

The previous prime is 27685323007. The next prime is 27685323101. The reversal of 27685323023 is 32032358672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27685323023 - 2⁴ = 27685323007 is a prime.

It is a super-2 number, since 2×27685323023² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27685320023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13842661511 + 13842661512.

It is an arithmetic number, because the mean of its divisors is an integer number (13842661512).

Almost surely, 2^27685323023 is an apocalyptic number.

27685323023 is a deficient number, since it is larger than the sum of its proper divisors (1).

27685323023 is an equidigital number, since it uses as much as digits as its factorization.

27685323023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 27685323023 in words is "twenty-seven billion, six hundred eighty-five million, three hundred twenty-three thousand, twenty-three".