7663838563 has 4 divisors (see below), whose sum is σ = 7696730808. Its totient is φ = 7630946320.

The previous prime is 7663838543. The next prime is 7663838573. The reversal of 7663838563 is 3658383667.

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 7663838563 - 2¹³ = 7663830371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7663838503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16445773 + ... + 16446238.

It is an arithmetic number, because the mean of its divisors is an integer number (1924182702).

Almost surely, 2^7663838563 is an apocalyptic number.

7663838563 is a deficient number, since it is larger than the sum of its proper divisors (32892245).

7663838563 is a wasteful number, since it uses less digits than its factorization.

7663838563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32892244.

The product of its digits is 13063680, while the sum is 55.

The square root of 7663838563 is about 87543.3524775011. The cubic root of 7663838563 is about 1971.5847455090.

The spelling of 7663838563 in words is "seven billion, six hundred sixty-three million, eight hundred thirty-eight thousand, five hundred sixty-three".