27374740669 has 2 divisors, whose sum is σ = 27374740670. Its totient is φ = 27374740668.

The previous prime is 27374740667. The next prime is 27374740717. The reversal of 27374740669 is 96604747372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15917607225 + 11457133444 = 126165^2 + 107038^2 .

It is a cyclic number.

It is not a de Polignac number, because 27374740669 - 2¹ = 27374740667 is a prime.

It is a super-2 number, since 2×27374740669² (a number of 22 digits) contains 22 as substring.

Together with 27374740667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27374740661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13687370334 + 13687370335.

It is an arithmetic number, because the mean of its divisors is an integer number (13687370335).

Almost surely, 2^27374740669 is an apocalyptic number.

It is an amenable number.

27374740669 is a deficient number, since it is larger than the sum of its proper divisors (1).

27374740669 is an equidigital number, since it uses as much as digits as its factorization.

27374740669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 55.

The spelling of 27374740669 in words is "twenty-seven billion, three hundred seventy-four million, seven hundred forty thousand, six hundred sixty-nine".