39938083993 has 16 divisors (see below), whose sum is σ = 41951345920. Its totient is φ = 37987657344.

The previous prime is 39938083987. The next prime is 39938084023.

39938083993 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39938083993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39938083093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167455 + ... + 328507.

It is an arithmetic number, because the mean of its divisors is an integer number (2621959120).

Almost surely, 2^39938083993 is an apocalyptic number.

It is an amenable number.

39938083993 is a deficient number, since it is larger than the sum of its proper divisors (2013261927).

39938083993 is a wasteful number, since it uses less digits than its factorization.

39938083993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161248.

The product of its (nonzero) digits is 34012224, while the sum is 64.

The spelling of 39938083993 in words is "thirty-nine billion, nine hundred thirty-eight million, eighty-three thousand, nine hundred ninety-three".