68911267 has 2 divisors, whose sum is σ = 68911268. Its totient is φ = 68911266.

The previous prime is 68911253. The next prime is 68911277. The reversal of 68911267 is 76211986.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68911267 is a prime.

It is not a weakly prime, because it can be changed into another prime (68911207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34455633 + 34455634.

It is an arithmetic number, because the mean of its divisors is an integer number (34455634).

Almost surely, 2^68911267 is an apocalyptic number.

68911267 is a deficient number, since it is larger than the sum of its proper divisors (1).

68911267 is an equidigital number, since it uses as much as digits as its factorization.

68911267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 68911267 is about 8301.2810457182. The cubic root of 68911267 is about 409.9806990716.

The spelling of 68911267 in words is "sixty-eight million, nine hundred eleven thousand, two hundred sixty-seven".