68478122888 has 36 divisors (see below), whose sum is σ = 149370472485. Its totient is φ = 29345546496.

The previous prime is 68478122863. The next prime is 68478122891. The reversal of 68478122888 is 88822187486.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 67859208004 + 618914884 = 260498^2 + 24878^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185038.

It is a super-3 number, since 3×68478122888³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68478122888.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5174456 + ... + 5187672.

Almost surely, 2^68478122888 is an apocalyptic number.

It is an amenable number.

68478122888 is an abundant number, since it is smaller than the sum of its proper divisors (80892349597).

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

68478122888 is an frugal number, since it uses more digits than its factorization.

68478122888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26454 (or 13226 counting only the distinct ones).

The product of its digits is 22020096, while the sum is 62.

The spelling of 68478122888 in words is "sixty-eight billion, four hundred seventy-eight million, one hundred twenty-two thousand, eight hundred eighty-eight".