27400019465309 has 2 divisors, whose sum is σ = 27400019465310. Its totient is φ = 27400019465308.

The previous prime is 27400019465237. The next prime is 27400019465417. The reversal of 27400019465309 is 90356491000472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26414943365209 + 985076100100 = 5139547^2 + 992510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27400019465309 is a prime.

It is a super-2 number, since 2×27400019465309² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27400019465009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13700009732654 + 13700009732655.

It is an arithmetic number, because the mean of its divisors is an integer number (13700009732655).

Almost surely, 2^{27400019465309} is an apocalyptic number.

It is an amenable number.

27400019465309 is a deficient number, since it is larger than the sum of its proper divisors (1).

27400019465309 is an equidigital number, since it uses as much as digits as its factorization.

27400019465309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 27400019465309 in words is "twenty-seven trillion, four hundred billion, nineteen million, four hundred sixty-five thousand, three hundred nine".