27500027499977 has 2 divisors, whose sum is σ = 27500027499978. Its totient is φ = 27500027499976.

The previous prime is 27500027499953. The next prime is 27500027500039. The reversal of 27500027499977 is 77999472000572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27207031553296 + 292995946681 = 5216036^2 + 541291^2 .

It is a cyclic number.

It is not a de Polignac number, because 27500027499977 - 2¹⁶ = 27500027434441 is a prime.

It is not a weakly prime, because it can be changed into another prime (27500327499977) 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, 13750013749988 + 13750013749989.

It is an arithmetic number, because the mean of its divisors is an integer number (13750013749989).

Almost surely, 2^{27500027499977} is an apocalyptic number.

It is an amenable number.

27500027499977 is a deficient number, since it is larger than the sum of its proper divisors (1).

27500027499977 is an equidigital number, since it uses as much as digits as its factorization.

27500027499977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140026320, while the sum is 68.

The spelling of 27500027499977 in words is "twenty-seven trillion, five hundred billion, twenty-seven million, four hundred ninety-nine thousand, nine hundred seventy-seven".