3939831138005 has 32 divisors (see below), whose sum is σ = 5533696320768. Its totient is φ = 2637024998400.

The previous prime is 3939831137947. The next prime is 3939831138041. The reversal of 3939831138005 is 5008311389393.

It is not a de Polignac number, because 3939831138005 - 2¹⁶ = 3939831072469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6763652 + ... + 7323021.

It is an arithmetic number, because the mean of its divisors is an integer number (172928010024).

Almost surely, 2^{3939831138005} is an apocalyptic number.

3939831138005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3939831138005 is a deficient number, since it is larger than the sum of its proper divisors (1593865182763).

3939831138005 is a wasteful number, since it uses less digits than its factorization.

3939831138005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086877.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 3939831138005 in words is "three trillion, nine hundred thirty-nine billion, eight hundred thirty-one million, one hundred thirty-eight thousand, five".