2683942642 has 4 divisors (see below), whose sum is σ = 4025913966. Its totient is φ = 1341971320.

The previous prime is 2683942637. The next prime is 2683942669. The reversal of 2683942642 is 2462493862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2462493862 = 2 ⋅1231246931.

It can be written as a sum of positive squares in only one way, i.e., 2487914641 + 196028001 = 49879^2 + 14001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2683942592 and 2683942601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670985659 + ... + 670985662.

Almost surely, 2^2683942642 is an apocalyptic number.

2683942642 is a deficient number, since it is larger than the sum of its proper divisors (1341971324).

2683942642 is a wasteful number, since it uses less digits than its factorization.

2683942642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341971323.

The product of its digits is 995328, while the sum is 46.

The square root of 2683942642 is about 51806.7818147393. The cubic root of 2683942642 is about 1389.7107280655.

The spelling of 2683942642 in words is "two billion, six hundred eighty-three million, nine hundred forty-two thousand, six hundred forty-two".