68075008529 has 4 divisors (see below), whose sum is σ = 74263645680. Its totient is φ = 61886371380.

The previous prime is 68075008513. The next prime is 68075008559. The reversal of 68075008529 is 92580057086.

68075008529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68075008529 - 2⁴ = 68075008513 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (68075008559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094318559 + ... + 3094318580.

It is an arithmetic number, because the mean of its divisors is an integer number (18565911420).

Almost surely, 2^68075008529 is an apocalyptic number.

It is an amenable number.

68075008529 is a deficient number, since it is larger than the sum of its proper divisors (6188637151).

68075008529 is a wasteful number, since it uses less digits than its factorization.

68075008529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188637150.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 68075008529 in words is "sixty-eight billion, seventy-five million, eight thousand, five hundred twenty-nine".