68034478478 has 8 divisors (see below), whose sum is σ = 102586020480. Its totient is φ = 33839138320.

The previous prime is 68034478417. The next prime is 68034478481. The reversal of 68034478478 is 87487443086.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89049983 + ... + 89050746.

It is an arithmetic number, because the mean of its divisors is an integer number (12823252560).

Almost surely, 2^68034478478 is an apocalyptic number.

68034478478 is a deficient number, since it is larger than the sum of its proper divisors (34551542002).

68034478478 is a wasteful number, since it uses less digits than its factorization.

68034478478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178100922.

The product of its (nonzero) digits is 28901376, while the sum is 59.

The spelling of 68034478478 in words is "sixty-eight billion, thirty-four million, four hundred seventy-eight thousand, four hundred seventy-eight".