7919996563 has 2 divisors, whose sum is σ = 7919996564. Its totient is φ = 7919996562.

The previous prime is 7919996561. The next prime is 7919996587. The reversal of 7919996563 is 3656999197.

It is a weak prime.

It is an emirp because it is prime and its reverse (3656999197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7919996563 - 2¹ = 7919996561 is a prime.

Together with 7919996561, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7919996495 and 7919996504.

It is not a weakly prime, because it can be changed into another prime (7919996561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3959998281 + 3959998282.

It is an arithmetic number, because the mean of its divisors is an integer number (3959998282).

Almost surely, 2^7919996563 is an apocalyptic number.

7919996563 is a deficient number, since it is larger than the sum of its proper divisors (1).

7919996563 is an equidigital number, since it uses as much as digits as its factorization.

7919996563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24800580, while the sum is 64.

The square root of 7919996563 is about 88994.3625349381. The cubic root of 7919996563 is about 1993.3106984830.

The spelling of 7919996563 in words is "seven billion, nine hundred nineteen million, nine hundred ninety-six thousand, five hundred sixty-three".