68306011 has 4 divisors (see below), whose sum is σ = 69463800. Its totient is φ = 67148224.

The previous prime is 68305999. The next prime is 68306053. The reversal of 68306011 is 11060386.

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 68306011 - 2¹⁹ = 67781723 is a prime.

It is a super-2 number, since 2×68306011² = 9331422277464242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68306111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578806 + ... + 578923.

It is an arithmetic number, because the mean of its divisors is an integer number (17365950).

Almost surely, 2^68306011 is an apocalyptic number.

68306011 is a deficient number, since it is larger than the sum of its proper divisors (1157789).

68306011 is a wasteful number, since it uses less digits than its factorization.

68306011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157788.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 68306011 is about 8264.7450656387. The cubic root of 68306011 is about 408.7768643168.

Adding to 68306011 its reverse (11060386), we get a palindrome (79366397).

The spelling of 68306011 in words is "sixty-eight million, three hundred six thousand, eleven".