39668348192663 has 4 divisors (see below), whose sum is σ = 39668964406968. Its totient is φ = 39667731978360.

The previous prime is 39668348192651. The next prime is 39668348192689. The reversal of 39668348192663 is 36629184386693.

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 39668348192663 - 2¹⁶ = 39668348127127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39668348198663) 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 3 ways as a sum of consecutive naturals, for example, 308010581 + ... + 308139342.

It is an arithmetic number, because the mean of its divisors is an integer number (9917241101742).

Almost surely, 2^{39668348192663} is an apocalyptic number.

39668348192663 is a deficient number, since it is larger than the sum of its proper divisors (616214305).

39668348192663 is an equidigital number, since it uses as much as digits as its factorization.

39668348192663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616214304.

The product of its digits is 1451188224, while the sum is 74.

The spelling of 39668348192663 in words is "thirty-nine trillion, six hundred sixty-eight billion, three hundred forty-eight million, one hundred ninety-two thousand, six hundred sixty-three".