27807955739 has 2 divisors, whose sum is σ = 27807955740. Its totient is φ = 27807955738.

The previous prime is 27807955621. The next prime is 27807955757. The reversal of 27807955739 is 93755970872.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27807955739 is a prime.

It is a super-2 number, since 2×27807955739² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27807975739) 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, 13903977869 + 13903977870.

It is an arithmetic number, because the mean of its divisors is an integer number (13903977870).

Almost surely, 2^27807955739 is an apocalyptic number.

27807955739 is a deficient number, since it is larger than the sum of its proper divisors (1).

27807955739 is an equidigital number, since it uses as much as digits as its factorization.

27807955739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33339600, while the sum is 62.

The spelling of 27807955739 in words is "twenty-seven billion, eight hundred seven million, nine hundred fifty-five thousand, seven hundred thirty-nine".