27072399469 has 2 divisors, whose sum is σ = 27072399470. Its totient is φ = 27072399468.

The previous prime is 27072399449. The next prime is 27072399499. The reversal of 27072399469 is 96499327072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26231689444 + 840710025 = 161962^2 + 28995^2 .

It is a cyclic number.

It is not a de Polignac number, because 27072399469 - 2¹³ = 27072391277 is a prime.

It is a super-2 number, since 2×27072399469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27072399439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13536199734 + 13536199735.

It is an arithmetic number, because the mean of its divisors is an integer number (13536199735).

Almost surely, 2^27072399469 is an apocalyptic number.

It is an amenable number.

27072399469 is a deficient number, since it is larger than the sum of its proper divisors (1).

27072399469 is an equidigital number, since it uses as much as digits as its factorization.

27072399469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 27072399469 in words is "twenty-seven billion, seventy-two million, three hundred ninety-nine thousand, four hundred sixty-nine".