68795660387 has 8 divisors (see below), whose sum is σ = 71790105600. Its totient is φ = 65801492680.

The previous prime is 68795660377. The next prime is 68795660429. The reversal of 68795660387 is 78306659786.

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

It is a cyclic number.

It is not a de Polignac number, because 68795660387 - 2¹² = 68795656291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68795660317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558062 + ... + 670092.

It is an arithmetic number, because the mean of its divisors is an integer number (8973763200).

Almost surely, 2^68795660387 is an apocalyptic number.

68795660387 is a deficient number, since it is larger than the sum of its proper divisors (2994445213).

68795660387 is a wasteful number, since it uses less digits than its factorization.

68795660387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138753.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 68795660387 in words is "sixty-eight billion, seven hundred ninety-five million, six hundred sixty thousand, three hundred eighty-seven".