2938139863 has 6 divisors (see below), whose sum is σ = 2943498896. Its totient is φ = 2932790532.

The previous prime is 2938139861. The next prime is 2938139887. The reversal of 2938139863 is 3689318392.

It is not a de Polignac number, because 2938139863 - 2¹ = 2938139861 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 2938139863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2938139861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340306 + ... + 348832.

Almost surely, 2^2938139863 is an apocalyptic number.

2938139863 is a deficient number, since it is larger than the sum of its proper divisors (5359033).

2938139863 is an frugal number, since it uses more digits than its factorization.

2938139863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9701 (or 9114 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 52.

The square root of 2938139863 is about 54204.6110861428. The cubic root of 2938139863 is about 1432.2675587919.

The spelling of 2938139863 in words is "two billion, nine hundred thirty-eight million, one hundred thirty-nine thousand, eight hundred sixty-three".