68728496928 has 768 divisors, whose sum is σ = 248479580160. Its totient is φ = 16169103360.

The previous prime is 68728496927. The next prime is 68728496933. The reversal of 68728496928 is 82969482786.

Its product of digits (167215104) is a multiple of the sum of its prime divisors (112).

It is not an unprimeable number, because it can be changed into a prime (68728496927) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1857526926 + ... + 1857526962.

It is an arithmetic number, because the mean of its divisors is an integer number (323541120).

Almost surely, 2^68728496928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68728496928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124239790080).

68728496928 is an abundant number, since it is smaller than the sum of its proper divisors (179751083232).

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

68728496928 is a wasteful number, since it uses less digits than its factorization.

68728496928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 112 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 69.

The spelling of 68728496928 in words is "sixty-eight billion, seven hundred twenty-eight million, four hundred ninety-six thousand, nine hundred twenty-eight".