68077511 has 2 divisors, whose sum is σ = 68077512. Its totient is φ = 68077510.

The previous prime is 68077489. The next prime is 68077517. The reversal of 68077511 is 11577086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68077511 - 2¹⁴ = 68061127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68077517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34038755 + 34038756.

It is an arithmetic number, because the mean of its divisors is an integer number (34038756).

Almost surely, 2^68077511 is an apocalyptic number.

68077511 is a deficient number, since it is larger than the sum of its proper divisors (1).

68077511 is an equidigital number, since it uses as much as digits as its factorization.

68077511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 68077511 is about 8250.9097074201. The cubic root of 68077511 is about 408.3205361902.

The spelling of 68077511 in words is "sixty-eight million, seventy-seven thousand, five hundred eleven".