39729789604 has 12 divisors (see below), whose sum is σ = 69532732444. Its totient is φ = 19863294624.

The previous prime is 39729789569. The next prime is 39729789607. The reversal of 39729789604 is 40698792793.

It can be written as a sum of positive squares in 2 ways, for example, as 10231727104 + 29498062500 = 101152^2 + 171750^2 .

It is not an unprimeable number, because it can be changed into a prime (39729789607) 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 3 ways as a sum of consecutive naturals, for example, 343287 + ... + 444190.

Almost surely, 2^39729789604 is an apocalyptic number.

It is an amenable number.

39729789604 is a deficient number, since it is larger than the sum of its proper divisors (29802942840).

39729789604 is a wasteful number, since it uses less digits than its factorization.

39729789604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800094 (or 800092 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 39729789604 in words is "thirty-nine billion, seven hundred twenty-nine million, seven hundred eighty-nine thousand, six hundred four".