68651011 has 12 divisors (see below), whose sum is σ = 81098280. Its totient is φ = 57607680.

The previous prime is 68650999. The next prime is 68651027. The reversal of 68651011 is 11015686.

It is not a de Polignac number, because 68651011 - 2⁵ = 68650979 is a prime.

It is a super-2 number, since 2×68651011² = 9425922622644242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68651041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16606 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (6758190).

Almost surely, 2^68651011 is an apocalyptic number.

68651011 is a deficient number, since it is larger than the sum of its proper divisors (12447269).

68651011 is a wasteful number, since it uses less digits than its factorization.

68651011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36966 (or 36953 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 68651011 is about 8285.5905643472. The cubic root of 68651011 is about 409.4639256036.

Adding to 68651011 its reverse (11015686), we get a palindrome (79666697).

The spelling of 68651011 in words is "sixty-eight million, six hundred fifty-one thousand, eleven".