39899648607 has 96 divisors (see below), whose sum is σ = 67506892992. Its totient is φ = 20775960576.

The previous prime is 39899648599. The next prime is 39899648639. The reversal of 39899648607 is 70684699893.

It is not a de Polignac number, because 39899648607 - 2³ = 39899648599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39899648647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 67284103 + ... + 67284695.

It is an arithmetic number, because the mean of its divisors is an integer number (703196802).

Almost surely, 2^39899648607 is an apocalyptic number.

39899648607 is a deficient number, since it is larger than the sum of its proper divisors (27607244385).

39899648607 is a wasteful number, since it uses less digits than its factorization.

39899648607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 69.

The spelling of 39899648607 in words is "thirty-nine billion, eight hundred ninety-nine million, six hundred forty-eight thousand, six hundred seven".