39668474667 has 8 divisors (see below), whose sum is σ = 52893343696. Its totient is φ = 26444627712.

The previous prime is 39668474663. The next prime is 39668474707. The reversal of 39668474667 is 76647486693.

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

It is not a de Polignac number, because 39668474667 - 2² = 39668474663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39668474598 and 39668474607.

It is not an unprimeable number, because it can be changed into a prime (39668474663) 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 7 ways as a sum of consecutive naturals, for example, 159838 + ... + 323859.

It is an arithmetic number, because the mean of its divisors is an integer number (6611667962).

Almost surely, 2^39668474667 is an apocalyptic number.

39668474667 is a deficient number, since it is larger than the sum of its proper divisors (13224869029).

39668474667 is a wasteful number, since it uses less digits than its factorization.

39668474667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511037.

The product of its digits is 219469824, while the sum is 66.

The spelling of 39668474667 in words is "thirty-nine billion, six hundred sixty-eight million, four hundred seventy-four thousand, six hundred sixty-seven".