68808188 has 12 divisors (see below), whose sum is σ = 122976672. Its totient is φ = 33672000.

The previous prime is 68808161. The next prime is 68808199. The reversal of 68808188 is 88180886.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182813 + ... + 183188.

It is an arithmetic number, because the mean of its divisors is an integer number (10248056).

Almost surely, 2^68808188 is an apocalyptic number.

It is an amenable number.

68808188 is a deficient number, since it is larger than the sum of its proper divisors (54168484).

68808188 is a wasteful number, since it uses less digits than its factorization.

68808188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366052 (or 366050 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 47.

The square root of 68808188 is about 8295.0701021751. The cubic root of 68808188 is about 409.7761776573.

The spelling of 68808188 in words is "sixty-eight million, eight hundred eight thousand, one hundred eighty-eight".