2139040512 has 162 divisors, whose sum is σ = 7174679148. Its totient is φ = 611122176.

The previous prime is 2139040499. The next prime is 2139040523. The reversal of 2139040512 is 2150409312.

2139040512 is a `hidden beast` number, since 21 + 3 + 90 + 40 + 512 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 103423 + ... + 122369.

Almost surely, 2^2139040512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139040512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3587339574).

2139040512 is an abundant number, since it is smaller than the sum of its proper divisors (5035638636).

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

2139040512 is a wasteful number, since it uses less digits than its factorization.

2139040512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18983 (or 18959 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2139040512 is about 46249.7622912810. The cubic root of 2139040512 is about 1288.4661198883.

Adding to 2139040512 its reverse (2150409312), we get a palindrome (4289449824).

The spelling of 2139040512 in words is "two billion, one hundred thirty-nine million, forty thousand, five hundred twelve".