2139862312 has 32 divisors (see below), whose sum is σ = 4587448320. Its totient is φ = 916678080.

The previous prime is 2139862261. The next prime is 2139862331. The reversal of 2139862312 is 2132689312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143362 + ... + 157582.

It is an arithmetic number, because the mean of its divisors is an integer number (143357760).

Almost surely, 2^2139862312 is an apocalyptic number.

It is an amenable number.

2139862312 is an abundant number, since it is smaller than the sum of its proper divisors (2447586008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2139862312 is a wasteful number, since it uses less digits than its factorization.

2139862312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16921 (or 16917 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 2139862312 is about 46258.6458081081. The cubic root of 2139862312 is about 1288.6311044346.

The spelling of 2139862312 in words is "two billion, one hundred thirty-nine million, eight hundred sixty-two thousand, three hundred twelve".