27624242647 has 2 divisors, whose sum is σ = 27624242648. Its totient is φ = 27624242646.

The previous prime is 27624242623. The next prime is 27624242689. The reversal of 27624242647 is 74624242672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27624242647 - 2¹¹ = 27624240599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27624242597 and 27624242606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27624242147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13812121323 + 13812121324.

It is an arithmetic number, because the mean of its divisors is an integer number (13812121324).

Almost surely, 2^27624242647 is an apocalyptic number.

27624242647 is a deficient number, since it is larger than the sum of its proper divisors (1).

27624242647 is an equidigital number, since it uses as much as digits as its factorization.

27624242647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 46.

The spelling of 27624242647 in words is "twenty-seven billion, six hundred twenty-four million, two hundred forty-two thousand, six hundred forty-seven".