68081788 has 12 divisors (see below), whose sum is σ = 125413960. Its totient is φ = 32249232.

The previous prime is 68081749. The next prime is 68081791. The reversal of 68081788 is 88718086.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 447831 + ... + 447982.

Almost surely, 2^68081788 is an apocalyptic number.

It is an amenable number.

68081788 is a deficient number, since it is larger than the sum of its proper divisors (57332172).

68081788 is a wasteful number, since it uses less digits than its factorization.

68081788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895836 (or 895834 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 68081788 is about 8251.1688868911. The cubic root of 68081788 is about 408.3290869844.

The spelling of 68081788 in words is "sixty-eight million, eighty-one thousand, seven hundred eighty-eight".