68695511 has 2 divisors, whose sum is σ = 68695512. Its totient is φ = 68695510.

The previous prime is 68695493. The next prime is 68695513. The reversal of 68695511 is 11559686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68695511 - 2⁶ = 68695447 is a prime.

It is a super-2 number, since 2×68695511² = 9438146463102242, which contains 22 as substring.

Together with 68695513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68695513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34347755 + 34347756.

It is an arithmetic number, because the mean of its divisors is an integer number (34347756).

Almost surely, 2^68695511 is an apocalyptic number.

68695511 is a deficient number, since it is larger than the sum of its proper divisors (1).

68695511 is an equidigital number, since it uses as much as digits as its factorization.

68695511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 41.

The square root of 68695511 is about 8288.2755142430. The cubic root of 68695511 is about 409.5523788243.

The spelling of 68695511 in words is "sixty-eight million, six hundred ninety-five thousand, five hundred eleven".