68438896434 has 32 divisors (see below), whose sum is σ = 157330800000. Its totient is φ = 22026310992.

The previous prime is 68438896423. The next prime is 68438896441. The reversal of 68438896434 is 43469883486.

68438896434 is a `hidden beast` number, since 6 + 84 + 38 + 8 + 96 + 434 = 666.

It is a super-3 number, since 3×68438896434³ (a number of 33 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 21849934 + ... + 21853065.

It is an arithmetic number, because the mean of its divisors is an integer number (4916587500).

Almost surely, 2^68438896434 is an apocalyptic number.

68438896434 is an abundant number, since it is smaller than the sum of its proper divisors (88891903566).

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

68438896434 is a wasteful number, since it uses less digits than its factorization.

68438896434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43703039 (or 43703033 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 63.

The spelling of 68438896434 in words is "sixty-eight billion, four hundred thirty-eight million, eight hundred ninety-six thousand, four hundred thirty-four".