68491711 has 2 divisors, whose sum is σ = 68491712. Its totient is φ = 68491710.

The previous prime is 68491681. The next prime is 68491757. The reversal of 68491711 is 11719486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68491711 - 2¹⁷ = 68360639 is a prime.

It is a super-2 number, since 2×68491711² = 9382228951415042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68491781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34245855 + 34245856.

It is an arithmetic number, because the mean of its divisors is an integer number (34245856).

Almost surely, 2^68491711 is an apocalyptic number.

68491711 is a deficient number, since it is larger than the sum of its proper divisors (1).

68491711 is an equidigital number, since it uses as much as digits as its factorization.

68491711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 37.

The square root of 68491711 is about 8275.9719066705. The cubic root of 68491711 is about 409.1469692587.

The spelling of 68491711 in words is "sixty-eight million, four hundred ninety-one thousand, seven hundred eleven".