2781879214 has 4 divisors (see below), whose sum is σ = 4172818824. Its totient is φ = 1390939606.

The previous prime is 2781879203. The next prime is 2781879229. The reversal of 2781879214 is 4129781872.

2781879214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2781879214² = 15477703922570515592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695469802 + ... + 695469805.

It is an arithmetic number, because the mean of its divisors is an integer number (1043204706).

Almost surely, 2^2781879214 is an apocalyptic number.

2781879214 is a deficient number, since it is larger than the sum of its proper divisors (1390939610).

2781879214 is a wasteful number, since it uses less digits than its factorization.

2781879214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390939609.

The product of its digits is 451584, while the sum is 49.

The square root of 2781879214 is about 52743.5229578002. The cubic root of 2781879214 is about 1406.4126256593.

The spelling of 2781879214 in words is "two billion, seven hundred eighty-one million, eight hundred seventy-nine thousand, two hundred fourteen".