2681784142 has 4 divisors (see below), whose sum is σ = 4022676216. Its totient is φ = 1340892070.

The previous prime is 2681784109. The next prime is 2681784163. The reversal of 2681784142 is 2414871862.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670446034 + ... + 670446037.

It is an arithmetic number, because the mean of its divisors is an integer number (1005669054).

Almost surely, 2^2681784142 is an apocalyptic number.

2681784142 is a deficient number, since it is larger than the sum of its proper divisors (1340892074).

2681784142 is a wasteful number, since it uses less digits than its factorization.

2681784142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340892073.

The product of its digits is 172032, while the sum is 43.

The square root of 2681784142 is about 51785.9454099276. The cubic root of 2681784142 is about 1389.3380803713.

The spelling of 2681784142 in words is "two billion, six hundred eighty-one million, seven hundred eighty-four thousand, one hundred forty-two".