68439332188 has 24 divisors (see below), whose sum is σ = 126534945600. Its totient is φ = 32336703168.

The previous prime is 68439332119. The next prime is 68439332231. The reversal of 68439332188 is 88123393486.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6271083 + ... + 6281986.

It is an arithmetic number, because the mean of its divisors is an integer number (5272289400).

Almost surely, 2^68439332188 is an apocalyptic number.

It is an amenable number.

68439332188 is a deficient number, since it is larger than the sum of its proper divisors (58095613412).

68439332188 is a wasteful number, since it uses less digits than its factorization.

68439332188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12553149 (or 12553147 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 55.

The spelling of 68439332188 in words is "sixty-eight billion, four hundred thirty-nine million, three hundred thirty-two thousand, one hundred eighty-eight".