68400314239 has 4 divisors (see below), whose sum is σ = 68514125680. Its totient is φ = 68286502800.

The previous prime is 68400314237. The next prime is 68400314243. The reversal of 68400314239 is 93241300486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68400314239 - 2¹ = 68400314237 is a prime.

It is a super-2 number, since 2×68400314239² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68400314231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56904819 + ... + 56906020.

It is an arithmetic number, because the mean of its divisors is an integer number (17128531420).

Almost surely, 2^68400314239 is an apocalyptic number.

68400314239 is a deficient number, since it is larger than the sum of its proper divisors (113811441).

68400314239 is a wasteful number, since it uses less digits than its factorization.

68400314239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113811440.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 68400314239 in words is "sixty-eight billion, four hundred million, three hundred fourteen thousand, two hundred thirty-nine".