27748356863 has 2 divisors, whose sum is σ = 27748356864. Its totient is φ = 27748356862.

The previous prime is 27748356833. The next prime is 27748356871. The reversal of 27748356863 is 36865384772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27748356863 - 2⁶ = 27748356799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27748356833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13874178431 + 13874178432.

It is an arithmetic number, because the mean of its divisors is an integer number (13874178432).

Almost surely, 2^27748356863 is an apocalyptic number.

27748356863 is a deficient number, since it is larger than the sum of its proper divisors (1).

27748356863 is an equidigital number, since it uses as much as digits as its factorization.

27748356863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 59.

The spelling of 27748356863 in words is "twenty-seven billion, seven hundred forty-eight million, three hundred fifty-six thousand, eight hundred sixty-three".