68676511 has 4 divisors (see below), whose sum is σ = 68739112. Its totient is φ = 68613912.

The previous prime is 68676497. The next prime is 68676523. The reversal of 68676511 is 11567686.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68676511 - 2⁵ = 68676479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68676571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29625 + ... + 31858.

It is an arithmetic number, because the mean of its divisors is an integer number (17184778).

Almost surely, 2^68676511 is an apocalyptic number.

68676511 is a deficient number, since it is larger than the sum of its proper divisors (62601).

68676511 is a wasteful number, since it uses less digits than its factorization.

68676511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62600.

The product of its digits is 60480, while the sum is 40.

The square root of 68676511 is about 8287.1292375587. The cubic root of 68676511 is about 409.5146169550.

The spelling of 68676511 in words is "sixty-eight million, six hundred seventy-six thousand, five hundred eleven".