68387203667 has 4 divisors (see below), whose sum is σ = 68395030776. Its totient is φ = 68379376560.

The previous prime is 68387203649. The next prime is 68387203691. The reversal of 68387203667 is 76630278386.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68387203667 - 2⁶ = 68387203603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68387203697) 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, 3900434 + ... + 3917927.

It is an arithmetic number, because the mean of its divisors is an integer number (17098757694).

Almost surely, 2^68387203667 is an apocalyptic number.

68387203667 is a deficient number, since it is larger than the sum of its proper divisors (7827109).

68387203667 is an equidigital number, since it uses as much as digits as its factorization.

68387203667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827108.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 68387203667 in words is "sixty-eight billion, three hundred eighty-seven million, two hundred three thousand, six hundred sixty-seven".