39640006307 has 8 divisors (see below), whose sum is σ = 43245557040. Its totient is φ = 36034774560.

The previous prime is 39640006297. The next prime is 39640006327. The reversal of 39640006307 is 70360004693.

It is a happy number.

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 39640006307 - 2¹⁸ = 39639744163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39640006327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233669 + ... + 365897.

It is an arithmetic number, because the mean of its divisors is an integer number (5405694630).

Almost surely, 2^39640006307 is an apocalyptic number.

39640006307 is a deficient number, since it is larger than the sum of its proper divisors (3605550733).

39640006307 is a wasteful number, since it uses less digits than its factorization.

39640006307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159493.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 39640006307 in words is "thirty-nine billion, six hundred forty million, six thousand, three hundred seven".