68196049 has 2 divisors, whose sum is σ = 68196050. Its totient is φ = 68196048.

The previous prime is 68196047. The next prime is 68196067. The reversal of 68196049 is 94069186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 19963024 = 6945^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 68196049 - 2¹ = 68196047 is a prime.

Together with 68196047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68195996 and 68196014.

It is not a weakly prime, because it can be changed into another prime (68196047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34098024 + 34098025.

It is an arithmetic number, because the mean of its divisors is an integer number (34098025).

Almost surely, 2^68196049 is an apocalyptic number.

It is an amenable number.

68196049 is a deficient number, since it is larger than the sum of its proper divisors (1).

68196049 is an equidigital number, since it uses as much as digits as its factorization.

68196049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 68196049 is about 8258.0899123223. The cubic root of 68196049 is about 408.5573908851.

The spelling of 68196049 in words is "sixty-eight million, one hundred ninety-six thousand, forty-nine".