2138719696 has 20 divisors (see below), whose sum is σ = 4145010372. Its totient is φ = 1069039616.

The previous prime is 2138719673. The next prime is 2138719703. The reversal of 2138719696 is 6969178312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1173747600 + 964972096 = 34260^2 + 31064^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40656 + ... + 77008.

Almost surely, 2^2138719696 is an apocalyptic number.

It is an amenable number.

2138719696 is a deficient number, since it is larger than the sum of its proper divisors (2006290676).

2138719696 is a wasteful number, since it uses less digits than its factorization.

2138719696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40038 (or 40032 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 2138719696 is about 46246.2938623194. The cubic root of 2138719696 is about 1288.4017014086.

The spelling of 2138719696 in words is "two billion, one hundred thirty-eight million, seven hundred nineteen thousand, six hundred ninety-six".