68408642286 has 32 divisors (see below), whose sum is σ = 152951857920. Its totient is φ = 22662982872.

The previous prime is 68408642279. The next prime is 68408642317. The reversal of 68408642286 is 68224680486.

68408642286 is a `hidden beast` number, since 6 + 8 + 408 + 6 + 4 + 228 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3877170 + ... + 3894773.

It is an arithmetic number, because the mean of its divisors is an integer number (4779745560).

Almost surely, 2^68408642286 is an apocalyptic number.

68408642286 is an abundant number, since it is smaller than the sum of its proper divisors (84543215634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68408642286 is a wasteful number, since it uses less digits than its factorization.

68408642286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772117 (or 7772111 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

It can be divided in two parts, 6840864 and 2286, that added together give a triangular number (6843150 = T₃₆₉₉).

The spelling of 68408642286 in words is "sixty-eight billion, four hundred eight million, six hundred forty-two thousand, two hundred eighty-six".