63449686967 has 2 divisors, whose sum is σ = 63449686968. Its totient is φ = 63449686966.

The previous prime is 63449686961. The next prime is 63449686969. The reversal of 63449686967 is 76968694436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63449686967 - 2⁶ = 63449686903 is a prime.

Together with 63449686969, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63449686897 and 63449686906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63449686961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31724843483 + 31724843484.

It is an arithmetic number, because the mean of its divisors is an integer number (31724843484).

Almost surely, 2^63449686967 is an apocalyptic number.

63449686967 is a deficient number, since it is larger than the sum of its proper divisors (1).

63449686967 is an equidigital number, since it uses as much as digits as its factorization.

63449686967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282175488, while the sum is 68.

The spelling of 63449686967 in words is "sixty-three billion, four hundred forty-nine million, six hundred eighty-six thousand, nine hundred sixty-seven".