68821000642 has 8 divisors (see below), whose sum is σ = 104981187600. Its totient is φ = 33827271444.

The previous prime is 68821000627. The next prime is 68821000673. The reversal of 68821000642 is 24600012886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291614292 + ... + 291614527.

It is an arithmetic number, because the mean of its divisors is an integer number (13122648450).

Almost surely, 2^68821000642 is an apocalyptic number.

68821000642 is a deficient number, since it is larger than the sum of its proper divisors (36160186958).

68821000642 is a wasteful number, since it uses less digits than its factorization.

68821000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583228880.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 68821000642 in words is "sixty-eight billion, eight hundred twenty-one million, six hundred forty-two", and thus it is an aban number.