68678516 has 24 divisors (see below), whose sum is σ = 125577984. Its totient is φ = 32826240.

The previous prime is 68678509. The next prime is 68678531. The reversal of 68678516 is 61587686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6956 + ... + 13628.

It is an arithmetic number, because the mean of its divisors is an integer number (5232416).

Almost surely, 2^68678516 is an apocalyptic number.

It is an amenable number.

68678516 is a deficient number, since it is larger than the sum of its proper divisors (56899468).

68678516 is a wasteful number, since it uses less digits than its factorization.

68678516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791 (or 6789 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 68678516 is about 8287.2502073969. The cubic root of 68678516 is about 409.5186021546.

The spelling of 68678516 in words is "sixty-eight million, six hundred seventy-eight thousand, five hundred sixteen".