68175358528 has 56 divisors (see below), whose sum is σ = 139996697400. Its totient is φ = 32901378048.

The previous prime is 68175358523. The next prime is 68175358577. The reversal of 68175358528 is 82585357186.

It can be written as a sum of positive squares in 4 ways, for example, as 25405809664 + 42769548864 = 159392^2 + 206808^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (68175358523) 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 7 ways as a sum of consecutive naturals, for example, 10941718 + ... + 10947946.

It is an arithmetic number, because the mean of its divisors is an integer number (2499941025).

Almost surely, 2^68175358528 is an apocalyptic number.

It is an amenable number.

68175358528 is an abundant number, since it is smaller than the sum of its proper divisors (71821338872).

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

68175358528 is a wasteful number, since it uses less digits than its factorization.

68175358528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12167 (or 12157 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 58.

The spelling of 68175358528 in words is "sixty-eight billion, one hundred seventy-five million, three hundred fifty-eight thousand, five hundred twenty-eight".