27056780680823 has 2 divisors, whose sum is σ = 27056780680824. Its totient is φ = 27056780680822.

The previous prime is 27056780680789. The next prime is 27056780680837. The reversal of 27056780680823 is 32808608765072.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27056780680823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27056780680843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13528390340411 + 13528390340412.

It is an arithmetic number, because the mean of its divisors is an integer number (13528390340412).

Almost surely, 2^{27056780680823} is an apocalyptic number.

27056780680823 is a deficient number, since it is larger than the sum of its proper divisors (1).

27056780680823 is an equidigital number, since it uses as much as digits as its factorization.

27056780680823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 27056780680823 in words is "twenty-seven trillion, fifty-six billion, seven hundred eighty million, six hundred eighty thousand, eight hundred twenty-three".