68858852450 has 48 divisors (see below), whose sum is σ = 133688050560. Its totient is φ = 26337717120.

The previous prime is 68858852389. The next prime is 68858852483. The reversal of 68858852450 is 5425885886.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68858852450.

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 23 ways as a sum of consecutive naturals, for example, 4658171 + ... + 4672929.

It is an arithmetic number, because the mean of its divisors is an integer number (2785167720).

Almost surely, 2^68858852450 is an apocalyptic number.

68858852450 is a deficient number, since it is larger than the sum of its proper divisors (64829198110).

68858852450 is a wasteful number, since it uses less digits than its factorization.

68858852450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18851 (or 18846 counting only the distinct ones).

The product of its (nonzero) digits is 24576000, while the sum is 59.

The spelling of 68858852450 in words is "sixty-eight billion, eight hundred fifty-eight million, eight hundred fifty-two thousand, four hundred fifty".