27656024497 has 2 divisors, whose sum is σ = 27656024498. Its totient is φ = 27656024496.

The previous prime is 27656024483. The next prime is 27656024509. The reversal of 27656024497 is 79442065672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21188004721 + 6468019776 = 145561^2 + 80424^2 .

It is a cyclic number.

It is not a de Polignac number, because 27656024497 - 2⁷ = 27656024369 is a prime.

It is not a weakly prime, because it can be changed into another prime (27656084497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13828012248 + 13828012249.

It is an arithmetic number, because the mean of its divisors is an integer number (13828012249).

Almost surely, 2^27656024497 is an apocalyptic number.

It is an amenable number.

27656024497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27656024497 is an equidigital number, since it uses as much as digits as its factorization.

27656024497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 27656024497 in words is "twenty-seven billion, six hundred fifty-six million, twenty-four thousand, four hundred ninety-seven".