68530328547 has 8 divisors (see below), whose sum is σ = 92474660544. Its totient is φ = 45136441128.

The previous prime is 68530328539. The next prime is 68530328609. The reversal of 68530328547 is 74582303586.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68530328547 - 2³ = 68530328539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68530328547.

It is not an unprimeable number, because it can be changed into a prime (68530328047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137610853 + ... + 137611350.

It is an arithmetic number, because the mean of its divisors is an integer number (11559332568).

Almost surely, 2^68530328547 is an apocalyptic number.

68530328547 is a deficient number, since it is larger than the sum of its proper divisors (23944331997).

68530328547 is a wasteful number, since it uses less digits than its factorization.

68530328547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275222289.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 68530328547 in words is "sixty-eight billion, five hundred thirty million, three hundred twenty-eight thousand, five hundred forty-seven".