39109968737 has 4 divisors (see below), whose sum is σ = 44697107136. Its totient is φ = 33522830340.

The previous prime is 39109968731. The next prime is 39109968803. The reversal of 39109968737 is 73786990193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39109968737 - 2⁴ = 39109968721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39109968737.

It is not an unprimeable number, because it can be changed into a prime (39109968731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793569189 + ... + 2793569202.

It is an arithmetic number, because the mean of its divisors is an integer number (11174276784).

Almost surely, 2^39109968737 is an apocalyptic number.

It is an amenable number.

39109968737 is a deficient number, since it is larger than the sum of its proper divisors (5587138399).

39109968737 is an equidigital number, since it uses as much as digits as its factorization.

39109968737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587138398.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 39109968737 in words is "thirty-nine billion, one hundred nine million, nine hundred sixty-eight thousand, seven hundred thirty-seven".