5278327663 has 4 divisors (see below), whose sum is σ = 6032374480. Its totient is φ = 4524280848.

The previous prime is 5278327657. The next prime is 5278327687. The reversal of 5278327663 is 3667238725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5278327663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278327163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377023398 + ... + 377023411.

It is an arithmetic number, because the mean of its divisors is an integer number (1508093620).

Almost surely, 2^5278327663 is an apocalyptic number.

5278327663 is a deficient number, since it is larger than the sum of its proper divisors (754046817).

5278327663 is an equidigital number, since it uses as much as digits as its factorization.

5278327663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754046816.

The product of its digits is 2540160, while the sum is 49.

The square root of 5278327663 is about 72652.1001967596. The cubic root of 5278327663 is about 1741.1336760347.

The spelling of 5278327663 in words is "five billion, two hundred seventy-eight million, three hundred twenty-seven thousand, six hundred sixty-three".