27764795501 has 2 divisors, whose sum is σ = 27764795502. Its totient is φ = 27764795500.

The previous prime is 27764795497. The next prime is 27764795533. The reversal of 27764795501 is 10559746772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17268588100 + 10496207401 = 131410^2 + 102451^2 .

It is a cyclic number.

It is not a de Polignac number, because 27764795501 - 2² = 27764795497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27764795101) 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, 13882397750 + 13882397751.

It is an arithmetic number, because the mean of its divisors is an integer number (13882397751).

Almost surely, 2^27764795501 is an apocalyptic number.

It is an amenable number.

27764795501 is a deficient number, since it is larger than the sum of its proper divisors (1).

27764795501 is an equidigital number, since it uses as much as digits as its factorization.

27764795501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 27764795501 in words is "twenty-seven billion, seven hundred sixty-four million, seven hundred ninety-five thousand, five hundred one".