2139911736 has 64 divisors (see below), whose sum is σ = 5429509920. Its totient is φ = 702750720.

The previous prime is 2139911723. The next prime is 2139911747. The reversal of 2139911736 is 6371199312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466896 + ... + 471456.

Almost surely, 2^2139911736 is an apocalyptic number.

It is an amenable number.

2139911736 is an abundant number, since it is smaller than the sum of its proper divisors (3289598184).

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

2139911736 is a wasteful number, since it uses less digits than its factorization.

2139911736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856 (or 4852 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 2139911736 is about 46259.1800186731. The cubic root of 2139911736 is about 1288.6410254488.

The spelling of 2139911736 in words is "two billion, one hundred thirty-nine million, nine hundred eleven thousand, seven hundred thirty-six".