39944927117 has 16 divisors (see below), whose sum is σ = 40804171200. Its totient is φ = 39092148480.

The previous prime is 39944927111. The next prime is 39944927119. The reversal of 39944927117 is 71172944993.

It is a cyclic number.

It is not a de Polignac number, because 39944927117 - 2⁶ = 39944927053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39944927111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19305359 + ... + 19307427.

It is an arithmetic number, because the mean of its divisors is an integer number (2550260700).

Almost surely, 2^39944927117 is an apocalyptic number.

It is an amenable number.

39944927117 is a deficient number, since it is larger than the sum of its proper divisors (859244083).

39944927117 is a wasteful number, since it uses less digits than its factorization.

39944927117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436.

The product of its digits is 3429216, while the sum is 56.

The spelling of 39944927117 in words is "thirty-nine billion, nine hundred forty-four million, nine hundred twenty-seven thousand, one hundred seventeen".