2219078713 has 4 divisors (see below), whose sum is σ = 2220885540. Its totient is φ = 2217271888.

The previous prime is 2219078699. The next prime is 2219078759. The reversal of 2219078713 is 3178709122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3178709122 = 2 ⋅1589354561.

It can be written as a sum of positive squares in 2 ways, for example, as 1629171769 + 589906944 = 40363^2 + 24288^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219078713 - 2¹⁷ = 2218947641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219078513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901570 + ... + 904027.

It is an arithmetic number, because the mean of its divisors is an integer number (555221385).

Almost surely, 2^2219078713 is an apocalyptic number.

It is an amenable number.

2219078713 is a deficient number, since it is larger than the sum of its proper divisors (1806827).

2219078713 is a wasteful number, since it uses less digits than its factorization.

2219078713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806826.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 2219078713 is about 47107.0983292327. The cubic root of 2219078713 is about 1304.3402688946.

The spelling of 2219078713 in words is "two billion, two hundred nineteen million, seventy-eight thousand, seven hundred thirteen".