39668825007 has 32 divisors (see below), whose sum is σ = 67238489600. Its totient is φ = 22642809984.

The previous prime is 39668825003. The next prime is 39668825047. The reversal of 39668825007 is 70052886693.

It is a happy number.

It is not a de Polignac number, because 39668825007 - 2² = 39668825003 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 (39668825003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55719 + ... + 287127.

It is an arithmetic number, because the mean of its divisors is an integer number (2101202800).

Almost surely, 2^39668825007 is an apocalyptic number.

39668825007 is a deficient number, since it is larger than the sum of its proper divisors (27569664593).

39668825007 is a wasteful number, since it uses less digits than its factorization.

39668825007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232332 (or 232326 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 39668825007 in words is "thirty-nine billion, six hundred sixty-eight million, eight hundred twenty-five thousand, seven".