68215678010 has 16 divisors (see below), whose sum is σ = 122793300000. Its totient is φ = 27285142416.

The previous prime is 68215677991. The next prime is 68215678067. The reversal of 68215678010 is 1087651286.

It is a happy number.

It is a Curzon 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, 139241 + ... + 394739.

It is an arithmetic number, because the mean of its divisors is an integer number (7674581250).

Almost surely, 2^68215678010 is an apocalyptic number.

68215678010 is a deficient number, since it is larger than the sum of its proper divisors (54577621990).

68215678010 is a wasteful number, since it uses less digits than its factorization.

68215678010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282205.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 68215678010 in words is "sixty-eight billion, two hundred fifteen million, six hundred seventy-eight thousand, ten".