5440000681 has 2 divisors, whose sum is σ = 5440000682. Its totient is φ = 5440000680.

The previous prime is 5440000627. The next prime is 5440000703. The reversal of 5440000681 is 1860000445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5215150656 + 224850025 = 72216^2 + 14995^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440000681 - 2¹³ = 5439992489 is a prime.

It is a super-3 number, since 3×5440000681³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (5440000381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720000340 + 2720000341.

It is an arithmetic number, because the mean of its divisors is an integer number (2720000341).

Almost surely, 2^5440000681 is an apocalyptic number.

It is an amenable number.

5440000681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440000681 is an equidigital number, since it uses as much as digits as its factorization.

5440000681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 5440000681 is about 73756.3602748943. The cubic root of 5440000681 is about 1758.7319422515.

The spelling of 5440000681 in words is "five billion, four hundred forty million, six hundred eighty-one", and thus it is an aban number.