27764720359 has 2 divisors, whose sum is σ = 27764720360. Its totient is φ = 27764720358.

The previous prime is 27764720323. The next prime is 27764720383. The reversal of 27764720359 is 95302746772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27764720359 - 2⁹ = 27764719847 is a prime.

It is a super-2 number, since 2×27764720359² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27764723359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13882360179 + 13882360180.

It is an arithmetic number, because the mean of its divisors is an integer number (13882360180).

Almost surely, 2^27764720359 is an apocalyptic number.

27764720359 is a deficient number, since it is larger than the sum of its proper divisors (1).

27764720359 is an equidigital number, since it uses as much as digits as its factorization.

27764720359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 27764720359 in words is "twenty-seven billion, seven hundred sixty-four million, seven hundred twenty thousand, three hundred fifty-nine".