68008927140 has 144 divisors (see below), whose sum is σ = 257197449600. Its totient is φ = 14131722240.

The previous prime is 68008927139. The next prime is 68008927153. The reversal of 68008927140 is 4172980086.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2439565 + ... + 2467284.

It is an arithmetic number, because the mean of its divisors is an integer number (1786093400).

Almost surely, 2^68008927140 is an apocalyptic number.

68008927140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68008927140 is an abundant number, since it is smaller than the sum of its proper divisors (189188522460).

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

68008927140 is a wasteful number, since it uses less digits than its factorization.

68008927140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906882 (or 4906877 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 68008927140 in words is "sixty-eight billion, eight million, nine hundred twenty-seven thousand, one hundred forty".