6503047663 has 4 divisors (see below), whose sum is σ = 7432054480. Its totient is φ = 5574040848.

The previous prime is 6503047651. The next prime is 6503047703. The reversal of 6503047663 is 3667403056.

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

It is a cyclic number.

It is not a de Polignac number, because 6503047663 - 2⁹ = 6503047151 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 (6503047643) 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, 464503398 + ... + 464503411.

It is an arithmetic number, because the mean of its divisors is an integer number (1858013620).

Almost surely, 2^6503047663 is an apocalyptic number.

6503047663 is a deficient number, since it is larger than the sum of its proper divisors (929006817).

6503047663 is an equidigital number, since it uses as much as digits as its factorization.

6503047663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929006816.

The product of its (nonzero) digits is 272160, while the sum is 40.

The square root of 6503047663 is about 80641.4760715601. The cubic root of 6503047663 is about 1866.5472106840.

The spelling of 6503047663 in words is "six billion, five hundred three million, forty-seven thousand, six hundred sixty-three".