77248226563 has 2 divisors, whose sum is σ = 77248226564. Its totient is φ = 77248226562.

The previous prime is 77248226501. The next prime is 77248226639. The reversal of 77248226563 is 36562284277.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77248226563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77248226563.

It is not a weakly prime, because it can be changed into another prime (77248226063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38624113281 + 38624113282.

It is an arithmetic number, because the mean of its divisors is an integer number (38624113282).

Almost surely, 2^77248226563 is an apocalyptic number.

77248226563 is a deficient number, since it is larger than the sum of its proper divisors (1).

77248226563 is an equidigital number, since it uses as much as digits as its factorization.

77248226563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 52.

The spelling of 77248226563 in words is "seventy-seven billion, two hundred forty-eight million, two hundred twenty-six thousand, five hundred sixty-three".