68611288 has 8 divisors (see below), whose sum is σ = 128646180. Its totient is φ = 34305640.

The previous prime is 68611267. The next prime is 68611297. The reversal of 68611288 is 88211686.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 68611288.

It is a congruent number.

It is an unprimeable number.

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, 4288198 + ... + 4288213.

Almost surely, 2^68611288 is an apocalyptic number.

It is an amenable number.

68611288 is a deficient number, since it is larger than the sum of its proper divisors (60034892).

68611288 is a wasteful number, since it uses less digits than its factorization.

68611288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576417 (or 8576413 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 68611288 is about 8283.1931041115. The cubic root of 68611288 is about 409.3849353920.

The spelling of 68611288 in words is "sixty-eight million, six hundred eleven thousand, two hundred eighty-eight".