208944977063 has 2 divisors, whose sum is σ = 208944977064. Its totient is φ = 208944977062.

The previous prime is 208944977057. The next prime is 208944977077. The reversal of 208944977063 is 360779449802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208944977063 - 2³⁴ = 191765107879 is a prime.

It is a super-2 number, since 2×208944977063² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 208944976993 and 208944977011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208944977863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104472488531 + 104472488532.

It is an arithmetic number, because the mean of its divisors is an integer number (104472488532).

Almost surely, 2^208944977063 is an apocalyptic number.

208944977063 is a deficient number, since it is larger than the sum of its proper divisors (1).

208944977063 is an equidigital number, since it uses as much as digits as its factorization.

208944977063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 208944977063 in words is "two hundred eight billion, nine hundred forty-four million, nine hundred seventy-seven thousand, sixty-three".