68542923792 has 80 divisors (see below), whose sum is σ = 202393296000. Its totient is φ = 19580937216.

The previous prime is 68542923791. The next prime is 68542923851. The reversal of 68542923792 is 29732924586.

It is not an unprimeable number, because it can be changed into a prime (68542923791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4344334 + ... + 4360082.

It is an arithmetic number, because the mean of its divisors is an integer number (2529916200).

Almost surely, 2^68542923792 is an apocalyptic number.

It is an amenable number.

68542923792 is an abundant number, since it is smaller than the sum of its proper divisors (133850372208).

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

68542923792 is a wasteful number, since it uses less digits than its factorization.

68542923792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720 (or 28714 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 68542923792 in words is "sixty-eight billion, five hundred forty-two million, nine hundred twenty-three thousand, seven hundred ninety-two".