68695374528 has 504 divisors, whose sum is σ = 235505402496. Its totient is φ = 19050577920.

The previous prime is 68695374431. The next prime is 68695374529. The reversal of 68695374528 is 82547359686.

It is a happy number.

68695374528 is a `hidden beast` number, since 68 + 6 + 95 + 37 + 452 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (68695374529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43838001 + ... + 43839567.

It is an arithmetic number, because the mean of its divisors is an integer number (467272624).

Almost surely, 2^68695374528 is an apocalyptic number.

68695374528 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68695374528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117752701248).

68695374528 is an abundant number, since it is smaller than the sum of its proper divisors (166810027968).

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

68695374528 is a wasteful number, since it uses less digits than its factorization.

68695374528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1637 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 68695374528 in words is "sixty-eight billion, six hundred ninety-five million, three hundred seventy-four thousand, five hundred twenty-eight".