27445923937 has 2 divisors, whose sum is σ = 27445923938. Its totient is φ = 27445923936.

The previous prime is 27445923931. The next prime is 27445923941. The reversal of 27445923937 is 73932954472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18042936976 + 9402986961 = 134324^2 + 96969^2 .

It is a cyclic number.

It is not a de Polignac number, because 27445923937 - 2⁷ = 27445923809 is a prime.

It is not a weakly prime, because it can be changed into another prime (27445923931) 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, 13722961968 + 13722961969.

It is an arithmetic number, because the mean of its divisors is an integer number (13722961969).

Almost surely, 2^27445923937 is an apocalyptic number.

It is an amenable number.

27445923937 is a deficient number, since it is larger than the sum of its proper divisors (1).

27445923937 is an equidigital number, since it uses as much as digits as its factorization.

27445923937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 55.

The spelling of 27445923937 in words is "twenty-seven billion, four hundred forty-five million, nine hundred twenty-three thousand, nine hundred thirty-seven".