939999994213 has 8 divisors (see below), whose sum is σ = 1103320456832. Its totient is φ = 783938218896.

The previous prime is 939999994201. The next prime is 939999994223. The reversal of 939999994213 is 312499999939.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-939999994213 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 939999994213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939999994223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814671545 + ... + 1814672062.

It is an arithmetic number, because the mean of its divisors is an integer number (137915057104).

Almost surely, 2^939999994213 is an apocalyptic number.

It is an amenable number.

939999994213 is a deficient number, since it is larger than the sum of its proper divisors (163320462619).

939999994213 is a wasteful number, since it uses less digits than its factorization.

939999994213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629343651.

The product of its digits is 344373768, while the sum is 76.

The spelling of 939999994213 in words is "nine hundred thirty-nine billion, nine hundred ninety-nine million, nine hundred ninety-four thousand, two hundred thirteen".