27247103977 has 2 divisors, whose sum is σ = 27247103978. Its totient is φ = 27247103976.

The previous prime is 27247103969. The next prime is 27247104011. The reversal of 27247103977 is 77930174272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16979132416 + 10267971561 = 130304^2 + 101331^2 .

It is a cyclic number.

It is not a de Polignac number, because 27247103977 - 2³ = 27247103969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27247103977.

It is not a weakly prime, because it can be changed into another prime (27247503977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13623551988 + 13623551989.

It is an arithmetic number, because the mean of its divisors is an integer number (13623551989).

Almost surely, 2^27247103977 is an apocalyptic number.

It is an amenable number.

27247103977 is a deficient number, since it is larger than the sum of its proper divisors (1).

27247103977 is an equidigital number, since it uses as much as digits as its factorization.

27247103977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 27247103977 in words is "twenty-seven billion, two hundred forty-seven million, one hundred three thousand, nine hundred seventy-seven".