39729379075 has 12 divisors (see below), whose sum is σ = 49514509440. Its totient is φ = 31622161760.

The previous prime is 39729379073. The next prime is 39729379141. The reversal of 39729379075 is 57097392793.

It is not a de Polignac number, because 39729379075 - 2¹ = 39729379073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39729379073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4028515 + ... + 4038364.

It is an arithmetic number, because the mean of its divisors is an integer number (4126209120).

Almost surely, 2^39729379075 is an apocalyptic number.

39729379075 is a deficient number, since it is larger than the sum of its proper divisors (9785130365).

39729379075 is a wasteful number, since it uses less digits than its factorization.

39729379075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067086 (or 8067081 counting only the distinct ones).

The product of its (nonzero) digits is 22504230, while the sum is 61.

The spelling of 39729379075 in words is "thirty-nine billion, seven hundred twenty-nine million, three hundred seventy-nine thousand, seventy-five".