68782139422 has 8 divisors (see below), whose sum is σ = 103348974456. Its totient is φ = 34332481272.

The previous prime is 68782139411. The next prime is 68782139429. The reversal of 68782139422 is 22493128786.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68782139422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68782139429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29292753 + ... + 29295100.

It is an arithmetic number, because the mean of its divisors is an integer number (12918621807).

Almost surely, 2^68782139422 is an apocalyptic number.

68782139422 is a deficient number, since it is larger than the sum of its proper divisors (34566835034).

68782139422 is a wasteful number, since it uses less digits than its factorization.

68782139422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58588442.

The product of its digits is 2322432, while the sum is 52.

The spelling of 68782139422 in words is "sixty-eight billion, seven hundred eighty-two million, one hundred thirty-nine thousand, four hundred twenty-two".