39929078550916 has 27 divisors (see below), whose sum is σ = 70300527320919. Its totient is φ = 19843942191048.

The previous prime is 39929078550913. The next prime is 39929078550923. The reversal of 39929078550916 is 61905587092993.

The square root of 39929078550916 is 6318946.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39929078550913) 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 8 ways as a sum of consecutive naturals, for example, 2110518505 + ... + 2110537423.

Almost surely, 2^{39929078550916} is an apocalyptic number.

39929078550916 is the 6318946-th square number.

It is an amenable number.

39929078550916 is a deficient number, since it is larger than the sum of its proper divisors (30371448770003).

39929078550916 is an frugal number, since it uses more digits than its factorization.

39929078550916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38176 (or 19088 counting only the distinct ones).

The product of its (nonzero) digits is 330674400, while the sum is 73.

The spelling of 39929078550916 in words is "thirty-nine trillion, nine hundred twenty-nine billion, seventy-eight million, five hundred fifty thousand, nine hundred sixteen".