63688223771 has 2 divisors, whose sum is σ = 63688223772. Its totient is φ = 63688223770.

The previous prime is 63688223759. The next prime is 63688223783. The reversal of 63688223771 is 17732288636.

63688223771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (63688223759) and next prime (63688223783).

It is a cyclic number.

It is not a de Polignac number, because 63688223771 - 2¹⁸ = 63687961627 is a prime.

It is not a weakly prime, because it can be changed into another prime (63688223171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31844111885 + 31844111886.

It is an arithmetic number, because the mean of its divisors is an integer number (31844111886).

Almost surely, 2^63688223771 is an apocalyptic number.

63688223771 is a deficient number, since it is larger than the sum of its proper divisors (1).

63688223771 is an equidigital number, since it uses as much as digits as its factorization.

63688223771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The spelling of 63688223771 in words is "sixty-three billion, six hundred eighty-eight million, two hundred twenty-three thousand, seven hundred seventy-one".