68256767 has 2 divisors, whose sum is σ = 68256768. Its totient is φ = 68256766.

The previous prime is 68256707. The next prime is 68256779. The reversal of 68256767 is 76765286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68256767 - 2⁶ = 68256703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68256707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34128383 + 34128384.

It is an arithmetic number, because the mean of its divisors is an integer number (34128384).

Almost surely, 2^68256767 is an apocalyptic number.

68256767 is a deficient number, since it is larger than the sum of its proper divisors (1).

68256767 is an equidigital number, since it uses as much as digits as its factorization.

68256767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 68256767 is about 8261.7653682491. The cubic root of 68256767 is about 408.6786072383.

The spelling of 68256767 in words is "sixty-eight million, two hundred fifty-six thousand, seven hundred sixty-seven".