68678295552 has 560 divisors, whose sum is σ = 219802191840. Its totient is φ = 21329215488.

The previous prime is 68678295547. The next prime is 68678295571. The reversal of 68678295552 is 25559287686.

68678295552 is a `hidden beast` number, since 6 + 8 + 6 + 78 + 2 + 9 + 5 + 552 = 666.

Its product of digits (72576000) is a multiple of the sum of its prime divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 68678295552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 827449303 + ... + 827449385.

It is an arithmetic number, because the mean of its divisors is an integer number (392503914).

Almost surely, 2^68678295552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68678295552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109901095920).

68678295552 is an abundant number, since it is smaller than the sum of its proper divisors (151123896288).

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

68678295552 is an equidigital number, since it uses as much as digits as its factorization.

68678295552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 160 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 68678295552 in words is "sixty-eight billion, six hundred seventy-eight million, two hundred ninety-five thousand, five hundred fifty-two".